The notorious "Hanoi Hilton" where Vietnamese colonial subjects and later American POWs, including John McCain, were imprisoned.

Home of the unusual art of water puppetry, one of Vietnam's oldest curiosities.

A nightmare for the claustrophobic lies hidden in Southeast Asia.

This Minnesota town celebrated the state's 100-year anniversary by creating a massive ode to nature's smartest bird.

This posh mansion began as a family's estate and ended as the site of a murder ripped from the pages of a pulp novel.

This picturesque cliffside beacon no longer calls to sailors but shines once a year in honor of a famous shipwreck.

These crudely shaped folk giants may be the the second most photographed statues in the U.S.

At this Minnesota state park you can easily wade across the source of the mighty Mississippi.

The only arched bridge made of stone on the entire Mississippi River.

This secret gem of a toy store houses a rideable carousel populated with fantasy animals.

When flour explodes, it's not a pretty sight.

A toweringly silly piece of modern art has been delighting locals since the 1980s.

Home to the Amorphophallus titanum "Corpse Flower," which is among the largest flowers in the world and also smells powerfully of rotting flesh when in bloom.

Equal parts record-breaking temple to consumerism and bizarre fun park, it's more than you think it is...

A museum within a museum, devoted to history's most questionable medical devices.

The humble beginnings of the man known for his lavish "champagne" music.

A rim-made reptile in North Dakota.

This sky-high radio mast is formerly the tallest man-made structure in the world.

The world's largest Holstein cow.

A true roadside icon standing on the same plains that the herds once roamed.

These former Cold War launch sites have been preserved for tourists to see where the button might have been pushed.

One man's quest to save his town with a trail of record-breaking sculptures.

A monument to the center of the North American continent may be off by a few miles.

The national park was once a plantation estate.