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

This Colorado fire station has been in continuous operation for more than a century.

A cavernous three-story, 43,800-square-foot basement that was forgotten about for 60 years.

An overlooked memorial honoring the local Washington residents who died in World War I.

Those with a sharp eye can find the hidden image of a German Shepherd on the memorial's Mural Wall.

Look closely and you’ll notice that the color changes a third of the way up the tower.

Coins and medals straight from the mint await visitors to this shop in the nation's capital.

Air Force Academy Chapel made of 100 identical tetrahedrons works to inspire those of all religions.

Strange red rock formations that have been attributed to a higher power for hundreds of years.

The fifth-longest natural arch in the world, and the longest outside China.

Dolphins, ancient clams and hundreds of waterfalls make this one of the world's top tourist destinations.

A solitary tree has grown up all alone on Lake Wānaka, backdropped by the beautiful Southern Alps.

A perfect turquoise lake colored with glacier dust.

A glacier pocked with ice caves and surrounded by rainforests.

The glacier tucked within a New Zealand rainforest.

Tubing through a cave lit with glowworms is a magical underground experience.

The real life Hobbiton, this sheep farm has been forever transformed since being built for The Hobbit film series.

A New Zealand communications tower stands as the tallest structure in the Southern Hemisphere.

Canyon walls shrouded in ferns.

The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

Hidden behind Lincoln's head is a 70-foot-long chamber containing enamel plates documenting American history, sealed in a teakwood box in a titanium vault.

One of the largest private collections of fossils in the world.

A museum chronicling pioneer life constructed over Interstate 80.

Four, 18-foot-tall badminton shuttlecocks lie scattered about the lawn of a Kansas City museum.