The hotel where Martin Luther King Jr. was shot is now a museum dedicated to his work.

This field of concrete was once an active defense site armed with nuclear warheads.

In 2018, Pohoiki Road was severed by lava flowing from the eruption of Kilauea.

Watch the newest land on the planet form before your eyes.

A beach made of semi-precious green sand on the Big Island of Hawai'i.

These picturesque Hawaiian falls are home to a rare species of fish that uses a special sucker to climb up cliffs.

This black shoreline is made up of exploded lava particles.

This legendary urban waterfall creates a dazzling display of rainbows.

A model of a galactic embassy is hidden in plain sight along the highway, proposed by a UFO religion to find the aliens that created life on Earth.

One of the world's oldest and most massive living organisms is a grove of quaking aspens.

Eons ago, a rushing lava river formed this pristine passage through solid rock.

See massive fossils that are over 200 million years old in northeastern Arizona.

This 4,000-foot-diameter hole is touted as "the most well known, best preserved meteorite crater on Earth."

A recreation of the doomed ocean liner in the middle of the Smoky Mountains.

Some islands... they come, they go, especially on Lake Travis.

Home to the largest urban bat colony in North America, estimated at 1.5 million bats.

Locals dubbed it the "Owl Building" because of its bird-like appearance.

The legend of a local monster still haunts this small town.

These pretty kitties killed and ate as many as 135 railway workers.

At Chicago's revered Field Museum, visitors are invited to learn about and literally explore DNA.

A singular collection of hand-built art deco cars are held in a building with style to match.

Twice a day one of these tragic bronze mariners drowns with the tide to remember all those the sea has taken.

Built hundreds of years ago this downtown iron barrier once protected a much despised king.

I-95's Tijuana-style celebration of kitsch at the Carolina border.