This steep cable railway has been hoisting passengers in the heart of Québec City for over a century.

This lovely, if imposing, piece of Canadian gothic is possibly the most photographed hotel in the world.

South Dakota's oldest operating brewery is housed inside a historic firehouse.

The highest point in South Dakota contains the ashes of Valentine McGillycuudy, the "Holy White Man."

Thanks to a loophole in property ownership, this alleyway has become a cacophonous street gallery.

This prehistoric sinkhole lured exclusively male mammoths to their death, much to the delight of science.

The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

What happens when a sculptor has to find a way around a 100-year-old copyright.

This expansive bridge in the Canadian wilderness was originally just built for friends.

A working steam clock, one of only a few in the world, located in Vancouver's Victorian Gastown.

This rare example of a "tidefall" is a spectacular drop from the cliffs down onto the beach.

Nuclear waste dump site now an environmental sanctuary.

This contorting sculpture is the tallest in San Francisco.

An elaborate gift from Claus Spreckels is now a piece of San Francisco history.

A man-made island in scenic San Francisco Bay.

The stones that traveled from Spain to eventually become a holy place for San Francisco's nature worshippers.

The last remaining relic of San Francisco's glittering 1915 Panama Pacific Exposition.

San Francisco's newly reopened hands-on science museum.

Olfactory delights in San Francisco's Botanical Gardens.

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

Carnivorous plants, medieval aphrodisiacs, and the largest original wood structure glass conservatory in the western hemisphere.

An artsy hidden staircase leads to breathtaking views of San Francisco.

Housed in a memorial lighthouse, this museum relays the history of surfing, beginning with the antics of royal Hawaiian teenagers.

A "gravitational anomaly" located in the redwood forests just outside of Santa Cruz, California.