This quirky hot springs town known to locals as "T or C" was named after a radio show.

Wedding chapel's mysterious spiral staircase said to be miraculously constructed.

These Pre-Columbian petroglyphs contain representations of birds, deer, hunters, and even some early Native flute players.

A multi-storied adobe complex has been inhabited for more than a thousand years.

Twice a year, visitors can tour the desolate site that birthed the Atomic Age.

A museum dedicated to the alleged Roswell Incident.

Explore the largest pure gypsum deposit in the world, and go dune sledding while you're at it.

Home to the deepest rift anywhere on Earth.

This sandstone mansion was the home of two of Oregon's most important pioneers.

A modest museum in the final home of Italian poet and father of modern Italian, Francesco Petrarca.

A sudden, striking cluster of hills south of Padua has been attracting visitors for centuries.

Pilgrimage site for star-crossed lovers.

The small peaceful island off the Venice tourist circuit is where the city began more than 1,500 years ago.

A new sculpture calls attention to climate change in the centuries-old city it threatens.

Go inside to really appreciate this 500-year-old technological masterpiece.

This Venice bookstore has resigned itself to constant flooding by keeping its books in bathtubs and boats.

This community on a small Venetian island has taken to painting their houses in bright neon hues.

Buy your friend a drink or staple some cash to the wall for the next guy at the Salty Dawg Saloon.

Running under an entire mountain, the longest highway tunnel in North America is kept fresh using portal fans and jet fans.

This small city where almost everyone lives in the same building can only be reached via North America's longest tunnel.

The king of U.S. high points towers over every other peak on the continent.

The only royal palace on U.S. soil has been a territorial capitol, a military headquarters, and a prison for a queen.

Half-size replica of the Taj Mahal.

Siddhartha Gautama sat here and received enlightenment.