A sculpture made of 10 Cadillacs as a monument to the "Golden Age" of the American automobile.

The marker offers a rare chance to be in four U.S. states at once, though there's some controversy over its geographic accuracy.

This Moab institution functions as both a rock store and a small natural history museum.

Journey up the capitol building's cupola for an amazing view of Topeka.

Established in 1638 to battle the Black Death, Hortus Botanicus Amsterdam is a treasure trove of rare flora.

Tucked in the back of a flower shop, its collection details the fascinating history of the Netherlands's iconic symbol.

This cheese shop also houses a museum devoted to Dutch dairy.

It appears as if a man is standing behind this giant airport clock, painting the hands in real time.

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

Vienna's giant wonder wheel had a starring role in one of the greatest noir movies of all time.

Baroque celebration of the end of the Great Plague of Vienna.

A breathtaking viewing platform over the Alps.

In the middle of a Vienna square, Roman ruins dating back some 2,000 years are on display.

Seattle's super-sized cowboy apparel once belonged to a themed gas station that wrangled in herds of tourists.

Though strikingly beautiful, Seattle's other railway station is now largely forgotten.

Suspended above the ground in a thicket of towering Georgia trees is a modern architectural wonder.

One street divides a single town that stands in two U.S. states.