Decode The Hidden.

New York's Best-Kept Hidden Places

New York City has more hidden places per square mile than any other city in the Western Hemisphere. Behind a service door in the basement of the Woolworth Building, a swimming pool built for the building's tenants in 1913 has sat unused for decades, its tiled walls still intact. The Elevated Acre, a public park built on top of a parking garage at 55 Water Street in the Financial District, is one of the largest public green spaces in Lower Manhattan — and most New Yorkers have never heard of it. In the West Village, a locked gate on Grove Street leads to Grove Court, a cluster of private homes built in the 1850s that is one of the most hidden residential enclaves on the island.

The city's hidden places exist because New York was built in layers. Each generation built on top of the last, sealing off previous versions of the city. Beneath the streets of Chinatown, old Prohibition tunnels connected bars to escape routes. Inside Grand Central Terminal, secret passageways lead to sub-basements that were classified during World War II. On Roosevelt Island, the ruins of a 19th-century smallpox hospital stand in a public park, their Gothic arches slowly crumbling into the East River. Each hidden place is a portal to a version of New York that the surface city has papered over.

StoryHunt is built for exactly this kind of discovery. Each mystery walk sends you to hidden places — not as a tourist on a bus, but as an investigator following clues on your phone. You'll find locked gardens, decode inscriptions on forgotten monuments, and discover rooms that most New Yorkers walk past every day without knowing they exist. Every clue is rooted in real history and real geography. The city is full of secrets. Your job is to find them.