The only ski tunnel in North America provides easy access to amazing snow and beautiful views.

A collection of 20th-century automata, penny arcade games, and musical contraptions.

The key to turning shifting dunes into the green oasis of Golden Gate Park.

Once the largest windmill outside of Holland, with enormous 114 foot sails.

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

Hopeless romantics will swoon over the sweet story behind this bright and colorful home.

Montreal's giant farmer's market is a foodie's best friend, especially in the winter months.

Four glass boxes hover over 1,000 feet in the air to give visitors an unparalleled view of Chicago.

A lush green oasis in the middle of Chicago.

A roaring, awe-inspiring double cascade of icy water flows through woodland Oregon like something out of a Tolkien novel.

The park preserves a single, rare species of carnivorous plant that spells doom for unsuspecting insects.

This playground sculpture of an icon from the past is dedicated to the children of the future.

One of the last socialist halls still standing in the United States.

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

One of America's first dinosaur parks gives a window into Depression-era paleontology.

Every president in history is immortalized in bronze in downtown Rapid City.

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

A place where the laws of nature seem to have gone completely berserk... but of course haven't.

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

Just a man taking his prehistoric pet for a stroll.

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

One devoted couple has donated multiple recreations of Michelangelo's sculptures to this South Dakota town.

This geodesic gallery holds a collection of painted spheres that make traditional canvases look lazy by comparison.

A roadside collection of over-sized iron creations that are a bit more macabre than most.