An abandoned, rusty old relic of railroad history stands at attention over the Cuyahoga River.

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 souvenir got the company’s founder out of a pretty pickle at the World’s Fair.

The largest university building in the West is a gothic masterpiece containing dozens of theme rooms based on different countries.

The tragic reality of a town riddled with rumors of haunts, chemical spills, and serial killers.

The only presidential monument to display a late POTUS's actual casket.

Funded by John D. Rockefeller, this is one of the earliest, and most beautiful, shopping arcades in America.

The only depiction of Abraham Lincoln holding a weapon, and the names of all 9,000 Cuyahoga veterans of the Civil War.

Cleveland's giant "free" stamp is a nod to the Civil War, but was misinterpreted for years.

The 25th President's marble casket can be visited in this classical Ohio tomb.

Frank Lloyd Wright's most iconic home dangles over a Pennsylvania waterfall.

The penultimate and final resting places of British General Edward Braddock—minus a few bits and pieces.

Three and a half miles of cliffs, rocky beaches, Gilded Age mansions and 40 Steps to nowhere in particular.

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

Pillars made of 700 pieces of luggage climb to the ceiling of Sacramento Airport's baggage claim.

California's own medieval Italian castle, authentic down to the 300-year-old iron maiden in the dungeon.

This concrete tangle of square pipes has stood as a proud thorn in the city's side since the '70s.

A collection of 20th-century automata, penny arcade games, and musical contraptions.

This private residence was the template for one of the most beloved television homes of all time.

Since 1973, this block has been home to the most concentrated collection of murals in San Francisco.

This one-block alleyway is stuffed with street art that is colorful, cultural, and intensely political.

The seawater playground of gilded-era San Francisco burned to the ground in 1966.

Once the largest windmill outside of Holland, with enormous 114 foot sails.

The California capital city once stood 10 feet lower than it does today.