The former hotel where Tesla invented the radio.

The oldest family-run luncheonette in New York, last renovated in 1948, still serves food and drinks the old-fashioned way.

This Wall Street bar was once a hub of revolutionary activity where Washington famously bid farewell to his troops.

World's largest barrel containing an inn.

Largest illuminated advertisement sign in the world.

This monolithic slab of art metal crowns a German slag heap.

Sausages, schnitzel, and weiners.

This fountain of a little boy that spits on passersby at erratic intervals is a town icon.

This small town in Germany was once a center of peppermint production, and has the museum to prove it.

This futuristic German television spire is actually the world's largest digital clock.

Take a walk in a recreation of ancient Rome.

The narrowest street in the world is in danger of closing up entirely.

It's good luck to be mocked by this monkey.

An old slaughterhouse now holds the largest collection of pig artifacts.

The largest bell in the world has been swinging high above a Cologne cathedral for almost a century.

A statue honors the local legend that the devil helped build St. Mary's church after being tricked into thinking it was going to be a wine bar.

Twisted buildings adorn the banks of the Rhine river.

This former Nazi castle was built as a school to train what would have been the future of the Third Reich.

Germany's Glienicke Bridge has a shady history of clandestine meetings, espionage, and spycraft.

This painted Lego bridge is the product of over a century of locomotive history.

An elegant chandelier hangs over this ancient sewer chamber, now open for concerts and public tours.

A meteorite-bounded town in Bavaria.

A former ironworks that was the first UNESCO industrial site.

In this truly magical place, rent hasn't been raised since the year 1520.