Statue of Lenin, from Cold War era Czechoslovakia, now in a neighborhood of Seattle.

This former coal gasification plant found a curious second life as a popular public park.

A wall of chewing gum moonlights as collective art.

A museum dedicated to the history and exploration of both popular music and science fiction.

A giant Troll lurks under one of Seattle's oldest bridges.

A walk through the historic city center, under the streets of Seattle.

This concrete tangle of square pipes has stood as a proud thorn in the city's side since the '70s.

A 300-ship graveyard, with a few still visible at low tide.

The last remaining relic of San Francisco's glittering 1915 Panama Pacific Exposition.

The seawater playground of gilded-era San Francisco burned to the ground in 1966.

Relics of the 1894 Midwinter Exposition continue to delight visitors today.

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.

2300-year-old Roman road connecting the empire.

Rome's semi-secret peephole vista is also a former Crusader stronghold.

The crypts of Capuchin friars decorated with the bones of over 4,000 friars, including an entire "crypt of pelvises."

The factory for the popular Dumbo location, the Greenpoint shop is a quiet gem.

A bit of retro transportation flair preserved in the world's largest department store.

A semi-scholarly approach to sex.

One of only two commuter aerial tramways in the United States.

The fanciest public restroom in New York City boasts fresh flowers, art, and a classical music soundtrack.

Spinning silently in the lobby of an Art Deco masterwork is a massive vintage model of the Earth.