One New Hampshire alleyway has become home to a public gallery of feline art.

This angular Dwarven tunnel cuts through a mountainside in Glacier National Park.

This giant disembodied horse head seems to balance impossibly on its nose.

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

A pedestrian island in the middle of world-famous Times Square emits a strange (and purposeful) humming noise.

A 19th-century politician who died after walking home in a blizzard is honored with this Manhattan statue.

There must be a pun in this haystack somewhere...

Cryptic messages embedded in the New York City sidewalk.

The New York hotel where tragic visionary Nikola Tesla spent his final hours, destitute and alone but for the pigeons.

An Old West film set seen in countless TV shows and movies is open for the public to explore.

The "Fun Spot of the Desert" is now a haunting ruin, and a reminder that putting a water park in a desert is a bad idea.

Brightly colored 30-foot-tall totems light up the desert sky just outside Las Vegas.

The world’s largest concentrated solar plant generates as many problems as megawatts.

Finally the worlds of UFO enthusiasts and beef jerky lovers have come together in this roadside shop.

This giant temperature attraction created some giant electric bills.

A giant open-air sculpture made of over 200 full-sized boats.

An overlooked monument to the celebrity gangster who helped put the sin in Sin City.

Dyed by iron oxide over centuries, these sandstone rocks rise thousands of feet into the sky.

This quiet park's strange sedimentary spires were named after Kodak's color film.

A sharp bend in a dramatic river canyon cut through red rocks.

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

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

The hike through a narrow river flanked by the 2,000-foot-tall walls of Zion Canyon is one of the best in the world.

Hundreds of drawings left by the land's previous inhabitants remain mysterious.