The Connecticut village named for its subterranean thunder.

This beloved roadside attraction welcomes visitors with his signature neon smile.

Resonating tubes make music from highway overpass.

This sprawling 18th-century cemetery features unique and beautiful gravestones, including one shaped like a tree.

This abandoned neighborhood is now a park filled with beautiful trees, wildflowers, and hints of its past.

This locally-famous crevasse in New York State is icy all year round.

A man-made island in scenic San Francisco Bay.

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

A derelict bit of infrastructure from the canal that once ran through D.C. is landlocked in the heart of the city.

An overlooked memorial honoring the local Washington residents who died in World War I.

A fortified palace in the shape of a ship on the Thiou river.

Look closely and you’ll notice that the color changes a third of the way up the tower.

An opulent monument built for a duke who donated his entire fortune to the city of Geneva.

The collection of intricate sculptures includes one carved from a mammoth's tusk

The unique collection often goes unnoticed by visitors focused only on the archaeological objects.

Come face to face with the ferocious visage of the serpent-headed mother goddess of the Aztecs.

This strange sculpture of a menacing skull surrounded by sun rays was discovered at the foot of the Pyramid of the Sun.

This colossal ancient jaguar sculpture was used as a vessel for the hearts torn from sacrificial victims.

It's believed this golden brick is part of the legendary lost Aztec treasure.

A grand entrance to one of the world's smallest Chinatowns.

A shining treasure trove of fine Mexican silver dating back to the 15th century.

In 2008, this Mexico City metro station was the site of an hours-long fight between emo, punk, and goth groups.

Balconies that have a most unusual accent.

In Coyoacán, a pair of coyotes crown a public fountain in reference to the ancient Aztec name of the borough.