Legends surround this jagged rock formation in the New Mexico desert.

In the middle of an extremely unforgiving and desolate high desert is the most secret military facility in the world.

One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.

A beautiful geyser under environmental threat.

An architect's childhood fantasy treehouse made real.

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

An earthwork sculpture built by Robert Smithson in the Great Salt Lake only reemerges during drought.

Jurassic Park—A Still Life.

The largest island on the great salt lake is home to curious creatures and strange stories.

Largest man-made excavation on earth!

Visitors to this library are in for a real-world education in modernist architecture.

A hidden garden of stones engraved with scriptures, a Joseph Smith Sphinx, all carved by one man.

Largest lake in Great Britain measured by surface area.

Northern Ireland's Brobdingnagian stepping stones.

The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.

The final resting place of soldiers' loyal canine companions.