One of America's oldest Antarctic research bases is abandoned but still just waiting for visiting explorers.

Antarctica's only sculpture garden, it has art and penguins, but no plants in sight.

These giant volcano sponges in Antarctica are thought to be the world's oldest living animal, at 15,000 years old.

Largest sub-glacial lake ever discovered.

Antarctica's bustling metropolis, originally established by Richard E. Byrd.

Naked scientists race around the pole in the frigid cold to try to join Antarctica's exclusive 300 Club.

An abandoned whaling station on an active volcano offers hot springs in Antarctica, surrounded by ruined giants of industry.

Natural time capsule containing an alien ecosystem.

The 3.8 billion-year-old rock proves that tectonic plates may have been shifting longer than we thought.

A botanically themed auditorium blooms within the world’s last operating double-decker theater.

This elegant neoclassical garden is a peaceful oasis in the middle of the Nepalese capital.

Sandstone rock formations that look like they belong on the cover of a progressive rock album.

Here, at the "world's longest art gallery," you'll find forty miles of ancient petroglyphs and pictographs.

This dilapidated ship carcass covered in trees is a striking sight.

A comprehensive collection of bonsai set in a beautiful campus.

A cave interior in the shape of the ancient rhinoceros, created by lava cooling around its carcass.

Shoreline strewn with the remains of ghostly fallen trees.

The highest point in Washington state is a volcano covered in glaciers.

A tiny red pebble marks what may be the quietest outdoor spot in the United States.

A whimsical village of unique treehouses resides in a Washington forest.

An extraordinary mixture of natural beauty and man-made phenomena.

Rustic natural hot springs in the deciduous rain forest.

A huge musical sculpture and other art installations on the National Oceanic and Atmospheric Administration grounds.

Stroll through a wonderland of stupendous moss-covered trees.