One day a year it is legal to jump off of this astoundingly tall bridge that spans an Appalachian gorge.

An outlandish shoe shaped house built by an eccentric millionaire.

Sparkling, calcite-covered skeletons of children who may have been sacrificed to appease an angry god.

This charming colonial alleyway is one of the oldest continuously used residential streets in the U.S.

These unusual rooms on wheels are holdovers from the 1960s.

At Washington's Dulles Airport is a satellite museum (no pun intended) with three quarters of a million square feet of aircraft history.

This lovely picnic spot featuring thunderous jet landings is an aircraft spotter’s dream.

Thomas Jefferson's estate is home to hundreds of varieties of historic fruits and vegetables.

This museum explores the grim reality of life in the earliest British colonies in America.

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

This rare triple-jurisdiction drawbridge passes through Virginia, Maryland, and Washington, D.C.

Overlooking the Colorado Convention Center is this giant sculpture made from thousands of triangles.

This museum offers an actual time machine back through Colorado's past.

Tucked into Pittsburgh’s North Side, the Mattress Factory is a labyrinth of permanent, room-sized installations where artists transform entire spaces into mind-bending, immersive worlds.

This statue honors the author's groundbreaking family story.

One of America's oldest continuously operating hotels offers a blend of rich history and historic architecture in the heart of Annapolis.

World War II-era bunkers are hidden under the beaches of this picturesque park, which is still scattered with wartime watchtowers.

In Wilmington's hip Trolley Square neighborhood, a utility box has been repainted to resemble a classic gumball machine.

Strange red rock formations that have been attributed to a higher power for hundreds of years.

This abandoned ironworks was once the most important military supplier in America.

This fancifully decorated Victorian home in New York’s Hudson Valley is the only known fully domed octagonal residence in the United States.

An award-winning children’s garden enchants visitors at the intersection of natural beauty and fairy tales.

A former poultry store that looks like a giant duck and is one of the "seven wonders" of Long Island.

Commemorating the spot where the famous scientist fed his pigeons.