Even in death, he's still your huckleberry.

Crystal clear lake with a shoreline of travertine located in a Colorado canyon.

The spot in the Mile-High City that's exactly 5,280 feet above sea level (at least for now).

A collection of more than 12,000 shoes, displayed in a building shaped like a shoebox.

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

One of the largest underground systems runs under Canada's largest urban center.

Toxic waste disaster that founded the Superfund program.

Soaring over the Niagara Whirlpool since 1916.

Genesis of modern hydroelectric power.

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

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

A grand Gothic Revival basilica with stained glass depictions of Montreal's religious history has only one soul resting in its crypt.

Designed by Buckminster Fuller, this relic of the 67 Expo survived fire and ice.

This Canadian monument to the man who invented the telephone allows visitors to get up close and personal with the artifacts of his life.

If a glacial river suddenly diving into a sheer chasm via a dramatic, multi-stage waterfall isn't peak Iceland, it's certainly close.

An encyclopedic collection of mammal penises.

One of the tallest buildings in Iceland, and perhaps, the most visually impressive.

Medicinal spa created from the mineral-rich runoff of a geothermal power plant

You may get stranded and everyone's peeing in the water, but at least there's cocktails!

This fortress in Honduras was built to resist pirates, but its builders had more to fear from the British.

This staircase full of Mayan hieroglyphics is perhaps the largest single text in the world.

The youngest volcano in Central America.

A castle perched precariously over the Crimean Sea.

A former Latvian headquarters of the brutal KGB secret police is now open as a grim reminder of their atrocities.