The highest point in Washington state is a volcano covered in glaciers.

One of the final grand railway depot hotel complexes is slowly being restored to its former glory.

This memorial includes fragments from one of the greatest tragedies in United States history.

This public square capitalized on a single Eagles reference to bring some life back to an Arizona town.

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

This crumbling stump is all that remains of what was once thought to be the oldest living organism.

A gothic palace of endless stalagmites and pseudoscorpions waits within one of the world's most beautiful caves.

The longest living non-clonal organisms on Earth.

Aqueducts have dramatically changed this old lake, now home to tufa towers and its very own species of tiny brine shrimp.

The rocks in this arid basin leave trails of movement behind them.

A massive volcanic plug is now a protected area that hosts a number of bird species.

The highest dunes in California are the most likely place in the area to hear the Singing Sands.

The largest dune field in the Mojave offers a chance of hearing the 'singing sands.'

Each year these high desert hills are absolutely covered with poppy flowers in a surreal show of nature.

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

Four hundred granite steps were built into this massive rock by the National Park Service.

Where a railroad loops under or over itself to rise or drop more than 70 feet in a short distance.

Travelers leave tea kettles in a remote part of Death Valley as part of a mysterious, decades-old tradition.

The world is full of swimming holes, but few compare to Samoa’s idyllic To Sua ocean trench.

Football field-sized microalgae production tanks on the Hawaiian coast create a stunning view from space.

A controversial memorial at the place where Captain Cook met his violent end.

These ancient sacred grounds granted amnesty to those who managed to reach them.

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.

This black shoreline is made up of exploded lava particles.