An overlooked monument to the celebrity gangster who helped put the sin in Sin City.

An exotic wildlife habitat right off The Strip.

These banned cigarette vending machines now sell little pieces of pocket-sized art.

Four ionic columns from the Treasury Department building ended up in a park in Nebraska.

This once rural mansion now sits in the heart of the city.

This Great Plains museum pays tribute to both the prosperity and tragedy of the North American fur trade.

This erect, phallic geological spire wasn't always named so domestically.

An experimental, automotive replica of Stonehenge.

America's largest man-made forest was planted in an effort to bring back the past.

Other-worldly rock formations and ancient fossils abound in this unique stretch of Nebraska badlands.

A busy cafe better known for board games than food.

A wall of chewing gum moonlights as collective art.

The historic bar where local ship captains, traders, and gold miners would come together to do business a century ago.

This semi-secret garden in south Seattle emulates a traditional Japanese garden using the plants of the Pacific Northwest.

A colorful architectural gem in Seattle's uniquely modern Central Library.

A walk through the historic city center, under the streets of Seattle.

These experimental weapons brought World War II to Nebraska as well as 26 other U.S. states.

Four glass boxes hover over 1,000 feet in the air to give visitors an unparalleled view of Chicago.

400 million-year old limestone caverns nestled in the Ozarks served as shelter and a hideout for cultures throughout North American history.

The world’s largest truck stop includes a barber shop, chiropractor, and a huge museum with antique trucks.

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

Beating out all other concrete competitors, this massive garden feature's pointy hat has earned it a world record.