A museum befitting the city responsible for supplying the majority of the world's LSD.

A speck of nature and art in one of San Francisco’s most notorious neighborhoods.

This Art Deco masterpiece has stood in for some of the most famous buildings in comic book history.

People can't get enough of these adorable Japanese photobooths.

A hidden subterranean installation offers a view of the sky.

A still functioning vaudeville carousel that has operated for over a century boasts a colorful menagerie and past.

San Francisco's urban bison herd has persisted in the face of extinction, development, and disease.

A nondescript building that's been functioning as a speakeasy for nearly a century and a half.

A favorite haunt of dinosaur loving children and hallucinogen loving hippies alike.

One-time largest man-made structure in the world will be a park in 30 years.

A former seaside jewel built for the everyman is now simply a neglected art deco fortress.

The oldest living organism in New York City. Maybe.

Seriously good slices of Sicilian pizza lurk at the back of the Bronx's oldest enclosed market.

A town trapped in time - 1958 to be exact.

A former connection to City Island, it has been abandoned since the 1930s.

One of the oldest Jewish cemeteries in the city, it is now overgrown with an urban forest.

This Dutch Colonial home is the oldest remaining farmhouse in Manhattan.

Rummage through this sunken ship, but leave your scuba gear at home.

This small, hidden cove is home to abandoned boats.

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

This neighborhood grocery houses a treasure trove of Eastern European delights.

This plot of old-growth forest is the largest surviving remnant of New York City's original woodland.

A discreet little stairway on St. Nicholas Avenue leads to a quaint and unexpected cobblestone street of 19th century wooden rowhouses.

Built as a gift to the hottest tastemaker of the time, these hidden quarters remain an Art Deco showpiece.