Built in 1512, the oldest cathedral in the Americas.

The oldest colonial fortress in the Americas was once the home and later prison of Christopher Columbus.

The beginning of the historic Iditarod Trail connecting the Alaskan cities of Seward and Nome.

A bust of the entertainer and politician sits in an alcove at the Palm Springs Airport.

This Transylvanian church has changed its denomination four times.

The European towns of Brașov and Râșnov each have proud signs reminiscent of the Hollywood sign.

This historic black and white monastery is one of Bulgaria's architectural jewels.

The most playful of the life-sized statues that make up Singapore's "People of the River."

Teeming with illegal goods and services, this towering maze of vice is also a popular tourist accommodation.

The world's longest outdoor covered escalator system transports commuters through Hong Kong's hilly terrain.

One of corporate America's best-kept secrets is also one of the most publicly displayed.

This Art-Deco movie palace is the oldest independent cinema in Atlanta.

This ever-changing arrangement of naked dolls even caught the attention of "The Walking Dead" crew.

This cathedral dedicated to Louis IX, sainted King of France, holds many secrets.

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

Every equinox this Maya pyramid puts on a spooky ancient light show.

Besides being home to cave paintings and pre-Columbian Cuban archaeological remains, you get to take a boat through this stalactite and stalagmite covered cave.

Neo-cave art on the macro scale.

A focal point of the Cuban government, this city square features one of the most iconic images in the country.

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

The world's second largest single-dish radio telescope, once used to contact E.T.

A 56-foot tall statue of the god of fire looks out over Birmingham, Alabama.

One of many reminders of Tesla's scientific contributions overlooks the falls which inspired him.

Home of Howard Hughes' Spruce Goose.