The dog days of summer have come to a close and New York City real estate is in the midst of its annual slowdown as many locals have retreated to the Hamptons, Tri-state beach towns, or leafy areas in upstate New York or New England.

The term "dog days of summer" refers to the hottest period of the year in the northern hemisphere, specifically between July 3 and August 11 each year. The phrase derives from Hellenistic astrology and Roman astrology, when the Sun occupies the same area of the sky as the star Sirius and the constellation Canis Major (Latin translation: Greater Dog).

The trajectory of Sirius, the brightest star (besides the Sun) in our observable universe, rises and sets in sync with the Sun on July 23, and given Sirius' brightness, the ancient Romans believed that it gave off heat and could be attributed to the balmy weather notorious between late July and early August. Therefore, the term diēs caniculārēs, or “dog days.” came to mean the 20 days before and after Sirius' alignment with the Sun.

Approximately 220 Manhattan homes hit the market last week, at a median price of $1.665M for condos and $882K for co-ops. The priciest spread to come online happens to be one of the most expensive ever - a massive 11,535-square-foot duplex seemingly at the top of the world, but in reality on the 127th and 128th floors of Central Park Tower.

From its helicopter views, to its 50-foot long Grand Salon, the unit is surely one of the most jaw-dropping pads on the planet. Judging by the lack of details provided in the listing, this home most definitely has to be seen to be believed. To see this home and all others below, CityRealty is here to help you find the right agent (at no charge) to assist you in your search and negotiate on your behalf.

From the Listing: At over 1,300 feet in the sky, Residence 127/128 is the highest duplex in Central Park Tower. This trophy home spans 11,535 square feet and has breathtaking sweeping views encompassing Central Park, the Hudson River, the skyline, and all points south, east, north, and west. With eight bedroom suites, nine full bathrooms, and a powder room, this spectacular residence boasts soaring ceilings up to 14' with every room having grand scale, floor-to-ceiling windows, and dramatic vistas. The Grand Salon which spans over 50-feet with three walls of windows is the centerpiece of this architectural masterpiece; offering the ideal setting for entertaining with 270 degrees of captivating panoramic views. Adjacent to the Grand Salon is a corner 30-foot long formal dining room as well as a corner observatory that opens to a library both overlooking Central Park. There is a south-facing chef's eat-in kitchen which is beautifully appointed with custom cabinetry by Smallbone of Devizes and Miele appliances. See floor plan and full details here.

From the Listing: Don't miss this wonderfully spacious 1 bedroom co-op apartment in the heart of Kensington! At approximately 900 SF; enjoy beautiful original parquet hardwood floors, renovated eat-in windowed kitchen outfitted with white quartz countertops, Kohler farmhouse sink, Bosch dishwasher and microwave, and custom cabinetry with decorative backsplash and tile flooring. See floor plan and full details here.

From the Listing: This jewel of a home on Lower Fifth Avenue is sublime and can be purchased fully furnished. Upon entry through the foyer, you'll discover a generously proportioned 2 bedroom 1.5 bath custom crafted apartment that was designed with careful consideration. This showplace has an open plan that features herringbone hardwood floors, custom millwork, cove lighting and shades throughout.. See floor plan and full details here.

From the Listing: This palatial United Nations Plaza one-bedroom home has spectacular side East River views, which also reflect directly off the entire mirrored living room wall through floor-to-ceiling windows. The kitchen has been renovated with granite counters, a large dining island with tons of storage, a full-size washer/dryer combo unit, Fisher Paykel two drawer dishwasher and an extra-large refrigerator and freezer. See floor plan and full details here.

From the Listing: Welcome to this elegant, classically designed European home that exudes charm and sophistication. Located along Fifth Avenue's Museum Mile, this wonderful home is perfectly situated to enjoy the best of the Upper East Side lifestyle.

Enter into the classic foyer which offers 2 generous closets for storage. The rooms enjoy grand proportions and elegant pre-war detailing including hardwood floors and shutters throughout. The grand living room can also accommodate dining, and is wonderfully spacious for entertainment. The decorative fireplace creates a romantic ambiance. The room is ensconced in beautiful light from both Southern and Eastern exposures. See floor plan and full details here.

From the Listing: If you are hunting for a home with an expansive layout and outdoor space this is it. Penthouse 4A boasts nearly 1,200 square feet of interior space, and a floor-through layout with Northern, Southern, and Western exposures. The interior is highlighted by a soaring 11-foot high ceiling, spacious interior, and a clean modern finish. This home includes private outdoor spaces adjoined to every room, all boasting views of Manhattan, with Brooklyn buildings and treetops in the foreground. From the living/dining area is an expansive terrace with views of Midtown Manhattan, with the Empire State Building front and center. From both the Master Bedroom and 2nd Bedroom spot-on views of the World Trade Center and Williamsburg Bridge can be enjoyed. See floor plan and full details here.

From the Listing: Exquisite. Sophisticated. Innovative. Extraordinary. Just some of the words that describe this meticulously gut-renovated sprawling corner home high above city life, impeccably designed by an award-winning architect. As you enter the gracious foyer, the large wall to your left is perfect for displaying artwork with hidden recessed lighting for that special piece; the elegant lighting is a distinguishable feature throughout the home. Beyond the foyer, the expansive living and formal dining area flows seamlessly with the large windowed open concept chef's kitchen complete with Brazilian slate countertops, top-of-the-line appliances Sub Zero fridge, Wolf gas stove with vented range hood, Bosch dishwasher, and Wolf under counter drawer microwave. See floor plan and full details here.

From the Listing: Located in the heart of the West Village, Residence 3D is a beautifully appointed two-bedroom, two-bathroom home, perfectly positioned on the idyllic corner of Hudson and Charles Street. The entry foyer flows directly into the open entertaining space with seven oversized windows overlooking the picturesque treetops of the West Village. Featuring both western and northern exposures, this home is bathed in light throughout the day. The open and renovated kitchen is outfitted with white lacquer cabinetry, Calacatta gold marble countertops, gray back-painted glass backsplashes and Miele appliances. See floor plan and full details here.

From the Listing: 165 East 32 Street #20A Move right into this fully renovated tranquil escape in the sky that is flooded with natural light and expansive views of the Chrysler Building and NYC skyline. This 3 bedroom/2 bath cooperative exemplifies ~1500 square feet of modern and elegant living inspired by Nordic and Japanese design. With 3 spacious bedrooms, one of which is convertible into an expanded den or dining room and none of which share any adjoining walls, this gem of a layout affords every family member ample privacy. See floor plan and full details here.

From the Listing: Mint condition high floor two-bedroom loft with two full baths, three exposures, amazing light, central air conditioning, and private laundry moments from from Union Square! Welcome guests into a warm and inviting foyer and impress them with a dramatic living room with high ceilings wrapped in light from southwest exposures See floor plan and full details here.

From the Listing: PRIVATE FLOOR PENTHOUSE CONDO! This amazing sun-filled penthouse is a full-floor corner residence that includes 11-foot ceilings, floor-to-ceiling windows, and walnut flooring. This high floor has four exposures providing exceptional light throughout the day and glistening city views at night! This exceptional home flows beautifully! See floor plan and full details here.

From the Listing: Killer views in three directions from this high floor 3 bedroom/3 bathroom home. Perfectly situated in the Park Imperial, one of NYC's most highly sought-after full-service luxury condominiums, this breathtaking property features floor-to-ceiling windows and 10' ceilings with impressive views of the city skyline. See floor plan and full details here.

From the Listing: This immaculate and LARGE Residence features 4 Bedrooms, 3.5 Baths, and measures 2,419sf. Residence 5B is perfectly designed for today's lifestyle and features wide plank Austrian White Oak Hardwood Floors and elevated and paneled ceilings throughout. The main Living Area stretches 41 feet long and is adorned with two enormous bay windows that fill the entertaining spaces and interiors with incredible light and views of the Brooklyn Heights treetops, Lower Manhattan, and the harbor. See floor plan and full details here.

From the Listing: Immediate occupancy! Residence 8A is a bespoke three-bedroom, 3.5 bathroom home designed by renowned architect Deborah Berke Partners. Spanning approximately 2,229 square feet, this luxurious corner residence features 10-foot ceilings, oversized casement windows, Juliet balconies, custom moldings, 8-foot doorways, and white oak herringbone flooring in the main living areas. See floor plan and full details here.

From the Listing: Penthouse North is a spectacular three-bedroom, three and a half bathroom loft with a private roof deck, perfectly located in quintessential SoHo. The sprawling living room measures nearly 40 feet long by 17 feet wide and boasts 12-foot ceilings, a wood-burning fireplace, and oversized windows. The living room, master, and second bedrooms are touched by the morning sun, facing east, overlooking quiet Greene Street. A windowed, custom Poliform kitchen offers tremendous Calacatta Vagli marble counter space and is equipped with a Subzero refrigerator and wine cooler, Meile ovens, speed oven, and coffee system. Just a few step up is the third bedroom, complete with skylight, and en suite bathroom. See floor plan and full details here."

From the Listing: Masterfully renovated and combined, this sprawling loft consisting of the B and C lines at 30 Main Street is truly one of a kind. Situated on the north, east and south corners of the coveted Sweeney Building, this home is currently configured with 5 bedrooms plus a home office, den and playroom, 3 full baths, 2 half baths and its very own private rooftop cabana. Amazing views of NYC, the Manhattan Bridge, Empire State Building, East River, and Brooklyn Bridge Park can be enjoyed from the northern windows. See floor plan and full details here.

From the Listing: Welcome home to the impeccably renovated luxury penthouse at 93 Crosby Street. This home boasts 2 bedrooms, 2.5 bathrooms, and an immense private roof deck all designed with state-of-the-art touches. A private elevator entrance to a gracious living area with built-in storage and exposed brick. Gourmet chef's kitchen features large windows, custom mosaic tile, and an envious amount of workspace - Appliances include a wine fridge and high-end brands such as Viking and Monogram. Primary suite features a king-sized bed, Monogram drawer refrigerator, and Lutron shades and blackouts. See floor plan and full details here.

From the Listing: This rare loft has incorporated the heritage of this cast iron gem and brought it to another level in renovation making this offering unparalleled and renovated to the most exacting standards. With a superb reimagined and functional floor plan, the loft offers curated details providing a result unseen in the market today. Spanning approximately 3,000 square feet, 5 deep set windows flank the front of the unit and with outstanding light showcase how big the great room truly is. A massive 40-foot wide living and dining area makes this loft extremely conducive for both living and entertaining. This reconfigured 3 bed + 1 bonus room / 3 bath layout offers a level of design and function rarely seen. See floor plan and full details here.

From the Listing: 310 East 69th Street is a 5-story single-family townhouse in the coveted Lenox Hill neighborhood of Upper East Side. The recently updated property has 14 rooms, 5 bedrooms, 4.5 bathrooms, 4 fireplaces and a first floor yoga/gym/office space in approximately 4,375 interior square feet. In addition, there is approximately 745 square feet of north and south-facing outdoor spaces on 4 levels. See floor plan and full details here.

From the Listing: Apartment 10B at The New Museum Building is a sensational 4,671 square foot 3BD/3.5 BA loft located on one the most desirable cobblestone blocks in SoHo. Prepare to be impressed after the private keyed elevator doors open to an expansive entry gallery, connecting the kitchen, living room, dining area, and sitting room. The feeling of space and luxury is highlighted by oversized windows, chic finishes, stunning, wide-plank hardwood floors, and 10' ceilings. See floor plan and full details here.

From the Listing: Nestled behind the gates of the iconic cast-iron facade by the Pritzker Prize-winning architects Herzog and de Meuron in collaboration with Ian Schrager is TH5, a 25' wide triplex townhouse. Spanning 3750SF this home boasts loft-like proportions with architectural prowess. As one of the few new townhomes built in downtown Manhattan in generations, 40 Bond affords new owners the privacy of a townhouse with the amenities of one of downtown's premier full-service luxury condos. See floor plan and full details here.

From the Listing: An unparalleled luxury living experience awaits you at the striking ultra-modern One Madison condominium towering 60 stories over New York City! Perched on a high floor, with walls of windows showcasing breathtaking views and bathing the interior with sunlight, Residence 40A is a turnkey beauty in one of downtown's finest amenity-rich buildings. Enter this fabulous full-floor 4 bedroom, 4.5 bath home (3,310 s.f.) via a security-keyed elevator landing into your private vestibule. Exquisite interior features include dramatic panoramas, high ceilings, chic architectural columns, gorgeous 9-inch-wide quarter-sawn oak floors, and the finest contemporary finishes creating an awe-inspiring ambiance. See floor plan and full details here.

From the Listing: Featuring one of the most unique and tasteful floor plans of any residence on Billionaire's Row, One57, Apartment 41D is an impressive 5 bedroom, 5.5 bathroom duplex condo with full-length exposures to the North, East, and South. One of only two residences in One57 to boast private outdoor space, with staggeringly beautiful views of Central Park and a bright and airy Solarium, this chic and triple mint home with its sweep of elegantly proportioned rooms is a rare and coveted purchasing opportunity that is not to be missed. See floor plan and full details here.