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

A 56-foot tall statue of the god of fire looks out over Birmingham, Alabama.

At 207 feet, one of the world's longest continuous escalators.

Prehistoric animals decorate this popular outdoor park.

A cannon designed to fire an atomic warhead.

Designed by Maya Lin, the memorial honors 41 individuals who died fighting for equal rights between 1954 and 1968.

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

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

A community of collapsing homes more than a mile out from the Florida coast.

Former self-sufficient mental institution now a planned community.

The world's longest known cave system.

The oldest working bell set in North America, the bells at Old North Church sat silent for their first four years in Massachusetts.

Auburn's iconic eagle flight goes back to a 19th century eagle that dropped dead on the field after inspiring the football team to victory.

Resting place of the Texas A&M canine mascots, who watch the game from the grave with their own miniature scoreboard.

One person’s lost luggage is another person’s treasure.

The site of Paul Revere's historic two lantern warning.

Electrical pylon in the shape of Disney's beloved mouse.

The only arched bridge made of stone on the entire Mississippi River.

Home to drunken tower-climbing goats... seriously.

A little sculpture with a large wardrobe.

The second oldest continuously operating bar in Louisiana.

Climb inside an iron crystal magnified 165 billion times its normal size.

The short-lived history of a new republic and British control in West Florida.

Equal parts record-breaking temple to consumerism and bizarre fun park, it's more than you think it is...