785 Fifth Avenue, usually called the Park Cinq (Park-V), is a luxury cooperative apartment building on the Upper East Side of Manhattan in New York City.

It is located at 785 Fifth Avenue, at the southeast corner with 60th Street, across from Central Park and Grand Army Plaza.

[2] The Park Cinq shares its Fifth Avenue block with the Sherry Netherland Hotel.

"[3] The year the building opened, the New York Times described it as containing sixty-six "mansions," and described it as being "the world's most luxurious multiple dwelling.

"[4] Among the luxury details considered remarkable in that era were the presence of telephone outlets in every room and special windows designed to keep out noise.