Under a glass sidewalk lie the remains of some of Manhattan's oldest buildings.

A non-native grove of 241 redwoods in Southern California.

An otherworldly "cave" created by an artist in a Hong Kong factory building.

An immersive environment that is part haunted house, part choose-your-own-adventure, and part jungle gym.

A multiversal transit station located right below a highway interchange.

A bizarre house filled with an astounding array of collections.

This historic motel standing at the "crossroads of America" offers a radio in every room and was saved by local protesters.

The tiniest little stage in New York.

The artist and New York City icon lived, worked and died in this converted carriage house owned by another iconic artist, Andy Warhol.

A room in New York City that contains 250 cubic yards of dirt worth a million dollars.

A hidden bar inside an ad agency has a deliberately misleading name, so employees can stay late under pretext of paperwork.

Finally, you don't have to be a pious Swedish seaman to relax like one.

A classic Route 66 landmark that was built with scrap lumber and is held together with kitsch and puns.

The Vatican of the movie industry turned into an actual church.

A tropical rainforest designed to resemble a scene from the monumental film.

Rare videos and memorabilia await visitors inside this unique store.

Leaf through over 30,000 artists' sketchbooks in what may be the world's largest collection of doodles

A no-frills cinephile haven known for showing offbeat, underseen films.

A beautifully eclectic mix of architectural styles.

One of the last of the great 1920s movie palaces is a Floridian Greco-Spanish-Persian dreamscape.

This tiny movie theater was the last one in the U.S. constructed in the Nuevo Deco architectural style.

This 16th-century church now has a heavenly second life as a cultural hub of Pátzcuaro.

This modern theatre is housed inside a convent constructed more than 300 years ago.

L.A.'s oldest operating bowling alley is a beautifully restored homage to its speakeasy days.