The only way to see Pittsburgh is from the top of this lookout point, just like the ancient members of the native peoples did.

The first American department store, and home to the largest operating musical instrument in the world.

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

One of the steepest streets in the United States makes an intriguing challenge for cyclists.

Tour the dark and beloved poet's former cobwebbed basement, which may have inspired "The Black Cat."

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.

Controversially claiming the title of world's biggest bass drum, UT's Big Bertha was once made radioactive by the Manhattan Project.

Locals dubbed it the "Owl Building" because of its bird-like appearance.

This downtown Dallas art installation is always on the lookout.

Home to the largest urban bat colony in North America, estimated at 1.5 million bats.

Continuing the tradition of the dime museum in style.

An obelisk commemorating Lincoln's role in connecting the coasts.

The notorious couple camped at this site after a bloody shootout with police.

This simple home was the beginning of a long journey for the iconic Western film star.

Undone by Prohibition, this abandoned brewery-turned-flour mill is now ready for its third act.

This abandoned prison castle has become an imposing gallery of graffiti art.

One of few remaining antique carousels with stationary animals in the U.S.

There are eight natural springs around town, each with a slightly different taste.

This grand stone tower was dedicated to a famed American humorist almost by coincidence.

Explore some of the most unique vehicles in history along with a cast of unsettling mannequins.

Air Force Academy Chapel made of 100 identical tetrahedrons works to inspire those of all religions.

This razorback ridgeline has doubled as a scenic drive since the early 1900s.

The final resting place of American icon Buffalo Bill, and a museum that aids in telling his tale.

When zealous marijuana enthusiasts kept stealing the "Mile 420" highway marker, the State of Colorado got creative.