A circus legend leaves an unexpected endowment.

A wall of chewing gum moonlights as collective art.

The fossilized remains of ancient California redwoods.

California's own majestic geyser is powered by a subterranean volcano.

This giant steer-skull edifice refuses to die.

After a short-lived attempt to bring America in line with the rest of the world, this road was left in metric.

A spiritual vortex among the red rocks in Sedona.

The glacier tucked within a New Zealand rainforest.

A perfect turquoise lake colored with glacier dust.

An unusual and powerful memorial in which earthquake victims are remembered by empty white chairs.

After the devastating 2011 earthquake, historic Christchurch begins to recover, starting with the pop-up Re:START mall.

Relics of the 1894 Midwinter Exposition continue to delight visitors today.

One of the Seven Wonders of the Modern World holds the world's tallest metal staircase.

A 98-room castle in the middle of Toronto that bankrupted a 19th century electricity multimillionaire.

Strange physical sensations and optical contradictions keep visitors coming back for more.

Island where motor vehicles are banned -- home to the only carless highway in the United States.

This shallow cave got its name from copious amount of human bones found inside.

Sleep where gangsters fell amidst smoke and flame, with nary a bullethole to show for the legendary struggle.

This Niagara Falls tourist trap is a world bright with neon and curiosities that will inspire love, hate, or a mixture of both.

Dolphins, ancient clams and hundreds of waterfalls make this one of the world's top tourist destinations.

Statue dedicated to the star of an old television show.

A place to eat for on-the-run agents and espionage enthusiasts.

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

The 80-foot tire that looms over Michigan's I-94 was once a Ferris wheel in the New York World Fair.