This concert pavilion on the shore of the Great Salt Lake has been destroyed by fire, water, and disinterest but keeps coming back.

This awesome Spanish castle is so fantastical it was actually used on Game of Thrones.

At this airport "microcinema," you can catch a film before you catch a flight.

Rushing water plunges over a 100-foot drop created by an ancient lava flow at this majestic waterfall.

A plaque commemorates the spot in the Oregon woods where the first-ever Geocache was hidden.

A rugged lava field dotted with molds of the ancient pines that were growing when the volcano erupted.

This natural marble cave is one of only five national monuments in Oregon.

You might know it as the Overlook Hotel, but the inside is not going to be familiar.

This lake in the Cascades lives up to its name, disappearing down a hole every spring.

The eerie remnants of an ancient forest were hidden under the sand for centuries.

This frequently-photographed waterfall takes only a short hike to visit.

Private collection of art inspired by cabinets of curiosity.

This family-owned restaurant celebrates Native American cuisine.

A wild west land agreement was etched right onto this historic Idaho stone.

The warmest cave in the Ozarks features two seemingly bottomless lakes.

People of the Plum Bayou culture built these enormous mounds over 1,000 years ago.

These waterfalls can be twins or triplets, depending on how much it's rained recently.

Peak named for an old man who liked to run in the nude.

Home to a seasonal waterfall and swimming hole in the Ouachita Mountains.

The scant remains of an expansive indigenous civilization can be seen at this Arkansas state park.

This century-old roadside attraction is full of bizarre rock formations.

Claims to be the "World's Highest Hill."

Where hills of dirt conceal the burial ground of one of the most powerful ancient Native American societies.

Travel through the hidden underbelly of the city in colorful tunnels filled with art and history exhibits.