This abandoned NASA launch site is now a memorial to a trio of astronauts who were killed there.

A Circus legend leaves an unexpected endowment.

A monument celebrating the idea of reaching inaccessible places.

The former home of the Nobel Prize-winning American writer is now home to dozens of six-toed cats.

A haunted hill that supposedly defied gravity.

These remote Florida islands have a history of sea turtles and sunken treasures, and one of the world's largest coastal brick fortresses.

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

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.

The first declared National Monument in the United States.

Experience a charming 1930's version of "infotainment."

Dyed by iron oxide over centuries, these sandstone rocks rise thousands of feet into the sky.

The only road through the heart of Glacier National Park.

A spiritual vortex among the red rocks in Sedona.

The world's first nuclear power plant is open to visitors looking to role-play a meltdown.

Home to the deepest rift anywhere on Earth.

This quirky hot springs town known to locals as "T or C" was named after a radio show.

The second-largest cave chamber in the world was discovered in 1898 by a 16-year-old and a friend known as "Pothead."

Explore the largest pure gypsum deposit in the world, and go dune sledding while you're at it.

Hollywood's most famous landmark, the "temporary" sign that has stood for decades longer than intended.

High on a hill overlooking Los Angeles lives a world famous, high power conical Tesla Coil.

A stunning landscape of bunkers that once stored chemical weapons.

This extravagant Art Nouveau rest stop features a million-dollar view of the Columbia River.