A model of a dinosaur that was named for Andrew Carnegie stands outside the museum that also bears his name.

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

A historic coal mine that doubles as a museum and tourist attraction.

A pair of giant roadside arrows are all that remains of a former Route 66 trading post.

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

This unique historical monument features large concrete spheres designed to resemble fallen stars.

An extraordinary final resting place full of oversized art, amazing statues, and dead celebrities.

This 13-foot smiling peanut in Georgia helped Jimmy Carter win the 1976 presidential election.

One of the only Florida forts to remain in the hands of the Union all through the Civil War still stands as a historic stronghold.

This elaborate towering structure was once famed for its revolutionary height.

This beloved Baltimore spot features caged dolls, a giant Pez collection, and many, many mannequins.

This North Carolina museum is keeping the pinball craze alive, with a little Space Invaders on the side.

This Memphis recording studio launched the careers of Jerry Lee Lewis, Johnny Cash, and Elvis Presley.

A giant donut stands as a popular symbol of Los Angeles iconography.

The marker offers a rare chance to be in four U.S. states at once, though there's some controversy over its geographic accuracy.

Every day a troupe of pampered water fowl walk the red carpet to their favorite fountain.

A multimedia experience that chronicles the atrocities of racism.

A restored Pittsburgh house of God has been converted to a marvelous house of suds.

An organ located deep within a cave, whose "pipes" are the geological features of the cave itself.

The site where Poe "in great distress, and ... in need of immediate assistance" likely died.

Behind a bodega is a small museum of relics and ephemera showcasing the history of New York.

The last remaining relic of San Francisco's glittering 1915 Panama Pacific Exposition.

Found art has transformed this Pittsburgh neighborhood into a psychedelic dream.

Crammed into a Baltimore row house is an oddities shop that sells everything from skulls to dead insects.