This indoor ski resort has a mountain contained inside a mall.

The second-largest gold nugget in existence, displayed in a Las Vegas casino conveniently named the Golden Nugget.

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

The largest hot spring in the United States is, as the name suggests, a stunning show of natural color.

A beautiful geyser under environmental threat.

This ancient Chinese observatory still contains early astronomy technology.

Ming Dynasty necropolis raided during the Cultural Revolution.

The most famous location in China was home to whole dynasties worth of imperial rulers.

A moving memorial to the fallen and missing from WWI trenches.

I Street Bridge is the heaviest swinging center bridge in the United States.

Wedding chapel's mysterious spiral staircase said to be miraculously constructed.

Woven tree art gives this towering Australian woodland a touch of mystical whimsy.

A firefighting museum housed in a historic station whose Lookout Tower watches over Melbourne.

Monument that stands 40 feet and weighs 1,000 pounds.

A small Australian farmhouse became an international icon after appearing on a Midnight Oil album cover.

Australia's only intact colonial warship never saw action before being turned into a scenic wreck.

Three-story concrete ram with a permanent gift shop.

A microcosm of the whaling industry in a small Australian town.

Australia's first open air museum and antique 3D theater.

One of the first big sculptures anywhere in Australia.

These mythological giants take time out of their busy day guarding a Victorian market to let you know what time it is.

A massive metal lobster welcomes tourists to a roadside restaurant.

Taxidermy of the racing horse with a huge heart, who inspired hope in the Depression.

This giant dish located in a sheep paddock was the primary receiver of Apollo 11 TV transmissions.