The front yard of an Upper East Side town house hides the last fragment of one of New York's most famous theatres.

Brooklyn's most iconic restaurant, resurrected.

Every dish is blessed in this basement eatery beneath a Hare Krishna temple.

A whimsical, but often overlooked clock in Park Avenue.

A miniature rainforest is growing inside of a Midtown Manhattan office building.

In the back of a nondescript sports bar is a museum-worthy mural by legendary cartoonists.

A small peaceful park and waterfall tucked amid the urban grind of Midtown Manhattan.

This unmarked and unloved Manhattan subway grate created one of the most iconic images in American cinema.

Read a book next to a Midtown waterfall.

The oldest bibliophilia club in America, with exhibitions on historic books and graphic arts.

A tiny twin to Seattle's Fremont troll hides from the Florida sun under the Atlantic Boulevard drawbridge.

Underneath downtown Lincoln resides a network of caves that was also the city's first brewery.

Hidden in plain sight on a pair of Manhattan subway tunnels are a pair of public instruments that sing to each other.

A tiny museum housed in a New York freight elevator specializes in the "overlooked, dismissed, or ignored."

Great place to have a drink and a bite to eat in an atmosphere laden with New York's Bohemian past.

Hidden behind a gate in Greenwich Village is a little farmhouse that once served as the writing studio of a bestselling author.

A New York warehouse filled with an enormous amount of goods saved from the landfills and donated for creative use.

Offbeat arts organization that hosts exhibitions, events, and explorations.

Once a mortuary that held the remains of Buffalo Bill, this Denver hotspot is now a death-fixated restaurant.

You feel like you're in a forest, but you're actually walking amidst the branches and trunks of a single giant tree.

This haunting sculpture stands as a memorial to the torture victims of the Brazilian military dictatorship.

This public elevator links the lower city to the upper city of Salvador.

The largest library in Latin America owes its existence to an Old World earthquake and a Napoleonic invasion.

Try not to get lost in this picturesque Brazilian labyrinth of the dead.