The name of this tiny pocket park tucked between two buildings on Manhattan's Upper West Side is Latin for its location: "seventy-one."

A memorial to the first person killed by a motor vehicle in the Western Hemisphere.

A playground the size of a city block is a modernist monument to civic values and public housing.

Recovered from the brink of extinction, at home in the Financial District.

A famous alternative culture epicenter and where Joplin serenaded young hippies.

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

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

A huge musical instrument played by the ocean.

Step into a cartoon at this Seoul café that aims to evoke a two-dimensional scene.

A remnant of Korea's colonial past lies forgotten in a hip neighborhood in Seoul.

Plenty of old carney magic still haunts this photogenic amusement park.

Every color in the rainbow awaits.

This rugged area of red rocks and arches is often considered one of the most beautiful places on Earth.

An arsenic-filled pool in the Grand Canyon takes on the appearance of a giant, overflowing pumpkin.

This eye-popping Icelandic crater lake is surrounded by red volcanic rock.

An ancient Scottish rock formation said to be the gravesite of a giant remains ensconced in legend and intrigue.

Found art has transformed this Pittsburgh neighborhood into a psychedelic dream.

The longest navigable underground river in the United States is home to countless blind and albino animals.

Eons old volcanic activity created one of the most stunning rock formations in the United States.

This road in the Great Smoky Mountains was supposed to assuage a displaced community, but ended up a $52 million dead end.

At this Denver landmark, the meals are compulsory, the sopapillas are complimentary, and the insanity is everywhere.

An island filled with hundreds of hanging, decomposing, decapitated dolls.

This serene oasis in an affluent Los Angeles neighborhood holds some of Gandhi's ashes and got Elvis into Eastern Philosophy.

A historic neighborhood church is reborn as a psychedelic arts collective.