World's only nuclear reactor operated by liberal arts undergraduates.

This extinct shield volcano is the lightning rod of the Cascades.

A vertically floating hemlock controls the waves and weather at Crater Lake.

Home of Howard Hughes' Spruce Goose.

Hollowed out cedar log tubs set in an ancient towering forest.

Natural time capsule containing an alien ecosystem.

A wooden hut from the Heroic Age of Antarctic Exploration.

Fire meets ice at the southernmost volcano on Earth.

Largest sub-glacial lake ever discovered.

Terrifically morbid cemetary and site of famous Paracelsus' grave.

The world's oldest known salt mine.

Electrical pylon in the shape of Disney's beloved mouse.

Haunting and beautiful trees, doomed to die.

Paranormal experiences in this hotel's room 217 led Stephen King to write "The Shining."

Nimrod Polar Expedition base, and home to hundred-year-old frozen whisky.

Celebrated example of Ottoman architecture that also served as a site for brutal massacres.

Remember that scene in the Matrix, when Neo is in the big white room with all the weapons flying by? Well, this is what it would look like if he had wanted trees instead of guns.

A sculpture made of 10 Cadillacs as a monument to the “Golden Age” of the American automobile.