The first declared National Monument in the United States.

The crumbling structure is a rare surviving relic of the area's bygone mining industry.

Dance on a hand-hewn log floor padded with bouncy boxcar springs at a saloon built in 1883.

Native Americans built this circle of stones, which was used to predict astronomical events.

One man's ambition created this psychedelic log home.

Inside this striking glass building, visitors can see thousands of dinosaur fossils in the positions that nature deposited them more than 150 million years ago.

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

Kay Andrews's recipe was so good, her family immortalized it in stone.

Home to a timed geyser created by complete accident.

This Yellowstone geyser may not shoot as high as the nearby Old Faithful, but it erupts for considerably longer.

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

The largest hot spring in the United States is, as the name suggests, a stunning show of natural color.

A beautiful geyser under environmental threat.

This two-room shotgun shack in Tupelo is the birthplace of a King.

Over a dozen Native American earth mounds dating back over 2,000 years dot this Tennessee archaeological park.

Away from the crowds of fishing enthusiasts, take a hike deep into the woods and journey into an eerie darkness.

One of America's first planned communities is preserved in a state park.

The fastest mail service in the west is tracked and memorialized along this 1,400 mile trail.

This historic cliffside mansion uses a natural cave for air conditioning.

The show pony of cave systems, Fantastic Caverns manages to live up to its name.

Community bookshelf of 25-foot-tall book spines.

A celebration of the animation wizard's childhood home and antique railroad memorabilia collection.

Nordic giants resurrected from the sea and restored to their former greatness.

Train cars and railroad artifacts abound at this restaurant devoted to railway history.