The name of this famed hospital was once a byword for the horrors of medical and psychiatric care.

Mysterious 500-year-old tapestries depict a unicorn hunt.

Become a prohibition rebel.

New York City's smallest piece of private property.

Ride the subways of yesteryear.

Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

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

A semi-scholarly approach to sex.

Try not to get slimed in Tribeca.

Elevated freight railway turned wildly successful urban park.

Amid the bustle and noise of the Financial District hides a secluded garden oasis above the city streets.

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

Final resting place of two dozen New York City harbor ships.

All unmarked mute swans on the Thames are owned by the Queen per a tradition that began in the 12th century.

An image of the legendary saint stands in the shadow of a cathedral she liberated.

An unexpected and peaceful oasis on a hillside.

“It's the quality” (but probably also the drive-through donut tunnel) that has attracted diners since 1968.

You don't have to be a diplomat to visit the so-called Camp David of the West.

A giant knight, sex education, date shakes, and Jesus coexist happily in this Coachella Valley desert oasis.

Explore the wide world of desert plants at this unique Palm Springs botanical garden.

Instead of faces, these sculptures have barcodes—statements on societal dehumanization.

Explore the largest pure gypsum deposit in the world, and go dune sledding while you're at it.

This wall on a street corner in Lower Manhattan has been a blank canvas for a rotation of renowned artists since the 1980s.

During the holidays, a vintage subway train whisks New Yorkers back in time.