An abandoned network of military bunkers and tunnels open for anyone willing to descend into the darkness.

A magical sanctuary of mythological statuary.

This famous bridge twisted itself into oblivion, but not for the reason you might think.

A bike being "eaten" by a tree is the real Vashon legend behind popular children's book, "Red Ranger Came Calling."

The only surviving piece of a submarine said to be the most decorated vessel in U.S. history.

Shoreline strewn with the remains of ghostly fallen trees.

A surreal landscape where fanged rocks rise from the ground and the ocean feels like a great mystery.

A glimpse into the "Logging Capital of the World" at a time when there was far more forest and far less machinery.

At the most northwestern point of the contiguous United States lies a trail leading through an ancient forest to stunning cliff-side vistas and massive oceanside caves.

100-year-old shipwreck you can walk up to at low tide.

A cosmic pit stop just beyond the notorious Area 51.

Marta Becket's hand-painted theater in the desert.

The lowest point in North America is home to an undrinkable pool surrounded by fields of geometric salt flats.

Brightly colored 30-foot-tall totems light up the desert sky just outside Las Vegas.

One of the world's tallest Ferris wheels takes visitors high above Las Vegas in a spinning party room.

Experience a charming 1930s version of "infotainment."

These markers are used to document elevation changes around the famed dam.

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

"...I guess that was your accomplice in the wood chipper?"

This tribute to a local man towers within a quaint lakeside park.

This national park on the shore of Lake Michigan features remarkable dunes that lie at the heart of a Chippewa legend.

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

A journey begins with a single step, and for many, the road-trip of a lifetime started at this Chicago intersection.

A display of magnificent stained glass windows is the first exhibit of its kind.