Once home to over 8,000 exiled Hawaiians suffering from Hansen's Disease.

A unique set of caves that spits waves back out into the ocean.

A cooled lava flow from the Haleakalā volcano formed these surreal-looking columnar basalt structures.

Doris Duke's lasting collection of Islamic Art, hidden in a Hawaiian paradise.

This industrial area was the dumping ground for massive amounts of trash, some of which washes up as tiny bits of sea glass.

A series of waterfalls and pools that flow through the 'Ohe'o Gulch and into the ocean.

Race through the maze, get your name on the sign.

This small city where almost everyone lives in the same building can only be reached via North America's longest tunnel.

At a lodge and RV park is a collection of headwear that comes in at more than 11,300 and counting.

Saved by a logger, this Douglas fir is one of the last great old-growth trees in Canada.

This vast, pristine wilderness is home to a rare subspecies of black bear.

The wreckage still sits at the exact spot the plane crash-landed in 1945, carrying 1,000 pounds of explosives.

The stunning remnants of this wreck emerge from an otherworldly backdrop of rainforests.

A sacred lake composed of over 300 separate pools of highly concentrated minerals.

Greenery cloaks this serene sculpture inspired by the famous Lost Gardens of Heligan.

Fossils, railroads, and waterfalls!

The remains of a Canadian train crash are now mouldering beneath layers of rust and graffiti.

Defying all odds, this lonely little tree found a home on a log sticking out of a Canadian lake.

Aqueducts have dramatically changed this old lake, now home to tufa towers and its very own species of tiny brine shrimp.

Towering basalt columns, a creation of fire and ice.

The first lookout in Yosemite.

Under the right circumstances, this waterfall in Yosemite briefly turns a luminescent fiery orange.

A pair of large white marble lions guard this stretch of the Mojave Desert, and it is utterly mysterious how they got there.

Erosion and various mineral deposits give this striking canyon its distinct color and soft appearance.