The fifth-longest suspension bridge the world, connecting one Michigan peninsula to another.

World's largest Christmas store.

Island where motor vehicles are banned -- home to the only carless highway in the United States.

A small side chapel in Santa Fe's basilica is home to the oldest statute of the Virgin Mary in North America.

Thousands of pieces of art have been carved into the rock at the site of an ancient volcanic eruption.

Some 2,000 carvings show this rare desert spring has been an oasis for travelers for over a thousand years.

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

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

Natural sonic phenomenon comes with a grisly legend of murder and blood.

A small metropolis of Pueblo cave dwellings have been carved right into the hillside of this national monument.

An ode to a soldier who came to town, fell in love, then began making his own sparkling wine.

Launched by Napoleon's soldiers more than 200 years ago, a cannonball remains embedded in the tower wall.

This Slovak bridge is known both for its connection to a national uprising and its UFO-shaped eatery.

This Slovakian statue of an emerging sewer worker might just be a bronze peeping tom.

Thousands of tourists and residents in Cologne affix "love padlocks" on the Hohenzollernbrücke Bridge to symbolize their affections.

A tour of underground Berlin takes you through WWII air raid shelters and tunnels used to smuggle people out of East Germany.

The world's largest second-hand graces a clock surrounded by constantly changing flower beds. 

St. Mary's features one of the most spectacularly decorated cathedral interiors in all of Europe.

Throughout this shopping mall are medieval ruins that were discovered during the mall's construction.

This automated sculpture of two men peeing will spell out text messages with their micturition.

Despite attempts by local police to discourage it, Beatles-inspired graffiti has been a means for artists to air grievances for decades.

A bust of Franz Kafka spins in pieces, reflecting the writer's inner torment.

Macabre astrological automaton clock dating to the late 1400s.

These official units of measurement—including chains and perches—lie hidden beneath tourists' feet in a popular London hub.