The United States’s oldest funicular railway glides up and down a steep Pittsburgh street.

Everyone from Alan Ginsberg to The Rolling Stones has stopped by this classic dive bar.

This colorful gate stands as an entrance to the walled city of Old San Juan.

An enormous illuminated figure dances on the Las Vegas strip.

A Norwegian-born sculptor created these soaring guardian angels at the entrance to Hoover Dam.

Experience a charming 1930s version of "infotainment."

These markers are used to document elevation changes around the famed dam.

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

A giant open-air sculpture made of over 200 full-sized boats.

Formerly the world's largest, this Willy Wonka-esque contraption runs 24/7.

Dyed by iron oxide over centuries, these sandstone rocks rise thousands of feet into the sky.

The airport was once a Civil War battleground, and the earthwork defenses can still be seen today.

This beautiful vintage movie palace has seen little change in form or function since the 1920s.

Under a playground is a little-known sealed train tunnel that likely contains the bodies of workers trapped by cave-ins.

This labyrinthine resting place of Black American leaders has been reclaimed by nature.

A convincing little bit of ancient Egypt smack dab in Richmond, Virginia.

Inspired by a foil-wrapped potato, (seriously) the Markel Building has been deemed one of the 10 ugliest buildings in the world.

This 29-ton granite ball spins around at the slightest touch thanks to a scientific phenomenon.

A small Richmond island dotted with the remnants of hundreds of years of history.

An abandoned desert hamlet swallowed up by sand.

This bazaar is one of the oldest in the Arabian world.

This quirky piece of naval artillery has been deafening Canadians for over a century.

A working steam clock, one of only a few in the world, located in Vancouver's Victorian Gastown.

Built to defend Washington D.C. during the Civil War, this fort became a post-war nucleus for a thriving Black community.