A monument to the love people have for their pets.

This small, rural pioneer cemetery is full of interesting grave markers.

This graveyard contains markers and monuments dedicated to some of the darkest chapters in Washington's history.

The gravestones in this lost burial ground were bulldozed and replaced with houses and a dog park.

The final resting place of one of the most sensational guitar players of all time was created only after his father got the rights to his music.

Its 27 graveyards represent the many nationalities and ethnic groups that voyaged to this wilderness in the late 19th century.

This recently rediscovered Civil War-era submarine was the first to ever sink an enemy ship.

Former farm staffed by mental patients is now a public park.

This sprawling building built in 1890 was one of Minnesota’s earliest and largest mental health facilities.

The longest continuous lava tube in the continental U.S. offers 2.5 miles of dark explorations for the adventurous.

One man's ambition created this psychedelic log home.

A rapidly disappearing glacier filled with extinct grasshoppers, perfectly preserved in the ice.

An unusual geological feature towers over the remains of a dark episode in United States history.

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

The last physical evidence of the Lewis and Clark trail is one of their autographs etched into this giant rock.