The highest bridge in America was built for an almost unnervingly small amount of money.

The narrow mountain road that carves a path between Florence and Victor is tied to ghost towns and ghost stories.

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

Once a lonely sentinel on the edge of the Great Plains, this rebuilt trading fort offers a glimpse of life on the Santa Fe Trail.

The world's largest rose bush has literally outgrown the pioneer museum it was planted behind.

Stairs often replace streets on the steep slopes of this old mining town.

A living snapshot of a different time in America is preserved and maintained by a community of volunteers.

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

Once America's tallest structure, now a Baltimore landmark.

This bug-eyed water wheel uses the power of the Sun to clean up Baltimore Harbor.

Ship skeletons haunt Baltimore's waterways.

One of the only memorials dedicated to journalists who died in combat.

Although built to generate electricity for Marylanders, this dam has become an all-you-can-eat buffet for American bald eagles.

A dramatic, 360-degree recreation of Pickett's Charge in the Civil War.

Underground tunnels remain beneath this abandoned mental asylum.

Once the future of underwater combat, this old sub is now open for visitors to muck around in.

Classy up your Big Mac with bow-tied servers and chandeliers at the world's fanciest McDonald's.

This bridge is haunted by the ghost of a distraught mother.