An unoccupied lighthouse encased in layers of ice from the waters of Lake Erie.

The home made famous by the 1983 holiday classic is now a perfectly preserved shrine to the movie.

This recently restored timepiece has stood all around Kansas City.

The famous greeting card maker owns a collection of paintings by the famed surrealist.

This titanic oil company sign is a reminder of the Americana boom of the 1970s and also its commoditization.

The Old Courthouse takes visitors on a captivating trip through St. Louis' timeline.

A chessmaster's dream destination.

Less a museum than a bizarre fantasy world created by artists and engineers.

The palatial McDonald's that inspired Wesley Willis.

A display of magnificent stained glass windows is the first exhibit of its kind.

These chunky stone towers out in Lake Michigan are the key to Chicago’s drinking water.

To find the "unicorns of the deep" you've got to go downstairs.

The unluckiest U-boat in the entire German fleet is now on display in a Chicago museum.

A hot dog stand where the heads are just as hot as the dogs.

The twin towers in this Chicago fountain use 50 foot tall video screens to spit on people.

The only Bahá'í house of worship in North America and one of only a handful worldwide.

Four glass boxes hover over 1,000 feet in the air to give visitors an unparalleled view of Chicago.

Take shelter from Hawai'i's tropical heat under the massive canopy of largest Banyan tree on the island.

Built to give thanks for the passing of a plague epidemic, this cathedral is a one-of-a-kind architectural hybrid.

The second-highest train station in Europe.

Next to the Leaning Tower of Pisa is a cemetery home to ancient sarcophagi and disturbing murals.

An elaborate Mayan city shrouded in alien conspiracy revealed the tomb of Pacal the Great.

Clap your hands at the base of the pyramid, and the song of a sacred Mayan bird will echo through the air.

No telescopes, no power, no gift shop: The Observatory of Chichen Itza, one of the world's oldest observatories, takes astronomy back to basics.