A hidden subterranean installation offers a view of the sky.

An enormous illuminated figure dances on the Las Vegas strip.

The restored and active Victorian-era final resting place of San Francisco.

A shop full of natural curiosities, carnivorous plants, and costumed taxidermied mice.

A shining, cold, black organ lies in San Francisco's financial district.

Faceless white figures loom over the city from the rooftop.

A Texas cave network is home to some of the world's most spectacular-looking and bizarrely named mineral formations.

A tribute to a future time when gravity is conquered.

"Bite or Smite" became the unlikely mascot of a Tampa suburb.

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

A small peaceful park and waterfall tucked amid the urban grind of Midtown Manhattan.

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

This massive blockhead sculpture hides an entire library.

A hidden garden of stones engraved with scriptures, a Joseph Smith Sphinx, all carved by one man.

Special tunnels built so that frogs won't be killed when crossing the highway.

Outsider art or homage to aliens?

Europe's only museum solely dedicated to the history of whaling still has a fully-functioning whaling ship.

Just below the surface, shrimp are producing temperatures hotter than the sun.

This kitsch eatery is chock-a-block with bric-a-brac.

The giant pair of sexy legs sticking out the window of this costume store have become its main draw.

An overlooked and unassuming engineering marvel.

The programmatic glory of LA's giant whiskey barrel building has become an upscale reminder of the city's kitschy roadside past.

During prohibition, corrupt city officials ran drinking dens under the streets of Downtown Los Angeles.

Historic house-museum dedicated to the revolutionary gay graphic artist Tom of Finland.