The largest free-standing aquarium in the world resides in a hotel lobby in Berlin.

The world's largest neutrino telescope searches for secrets of the universe at the South Pole.

This bazaar is one of the oldest in the Arabian world.

Resonant stone, that has been played since prehistoric times.

Intensely colorful calcite pools in Southern China.

The oldest cemetery in New Orleans, resting peacefully for over 200 years now.

France's Lilliputian park displays over 100 of the country's monuments for visitor perusal.

A Boeing mechanic and his wife leave a whimsical, stone sculptured garden as their legacy.

This fantastical icy castle is built anew every winter.

One of the largest crucifixes in the world stands 55 feet tall in a secluded, wooded area of northern Michigan.

A fantastic castle rumored to be the birthplace of King Arthur.

World's largest cave was only discovered in 1991, and now offers tours to the public.

The ancient dwellings of the Puebloans, located in the cliffs of majestic mesas.

Lived-in building, bedecked with an astonishing array of mirror mosaics.

Ancient human, animal, and geometric figures drawn in the earth.

An intricate and amazing house built by architect Karl Junker.

Once strictly off-limits, this lower level housing curious and priceless vehicles of the Petersen Automotive Museum is now open to the public.

Odd outsider art installations surround a Gold Rush-era ghost town.

Rock-cut cave complex filled with ancient Buddhist artwork.

Mysterious and ancient carved standing stones.

A castle built by an eccentric medieval enthusiast in rural Ohio.

Take a drunken tour inside the world's largest known geode.

America's most famous piece of self-built architecture.

The final resting place and once home of the Bandit Queen of the West.