A collection of unique outdoor sculptures surounded by the beauty of nature.

A natural gas leak provides a flickering flame beneath a waterfall.

One of many reminders of Tesla's scientific contributions overlooks the falls which inspired him.

This restored house is like a time capsule of the president's unconventional inauguration.

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

Sample port and quinine-fortified wine at this fourth-generation winery near Porto.

The scorched Lisbon church that survived two earthquakes and a massive fire.

The world's oldest bookshop still in operation.

A king's pet, a pope's gift, an artist's inspiration, and a tragic shipwreck.

These light, hollow rolls have been linked to Acadia National Park since the 1890s.

Oldest existing church in New York and the inspiration for Washington Irving's "The Legend of Sleepy Hollow."

This site honors the end of a 100-year boundary dispute between the United States and Mexico—all started by a river's shifting course.

This high point in the Great Smoky Mountains is said to be home to the chief of all bears.

A building so large that it has its own weather.

The Lowcountry color with the power to stop evil from entering a home.

A statue honoring 44 continuous years of greeting passing ships.

A particularly creepy abandoned hospital that sparks interest for lovers of the supernatural.

This isn't your average roadway—it's actually a National Park and a transportation pioneer.

Bizarre Cavern.

The smallest covered bridge in Maryland.

An eerie, decaying ghost town destined to fade into the forest.

This former asylum for Black Americans is haunted by its history of violence and racism.

The last remains of one of the oldest and largest oak trees in the United States calls this state park home.

The grounds of former plantations where abolitionist Harriet Tubman spent her youth enslaved are now a museum to her incredible life.