Man-made geyser that rises to the exact height of the Gateway Arch.

Less a museum than a bizarre fantasy world created by artists and engineers.

This two-room shotgun shack in Tupelo is the birthplace of a King.

These ruins are all that's left of the former Alabama State Capitol.

148 feet long and in the middle of a verdant forest.

This stunning gothic ruin was a casualty of the Indiana steel industry crash.

Once a menacing challenge for trailblazers, this trail is now the most scenic drive in Utah.

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

The fifth-longest suspension bridge the world, connecting one Michigan peninsula to another.

One of the largest crucifixes in the world stands 55 feet tall in a secluded, wooded area of northern Michigan.

This fantastical waterfall is hidden in a cave located in a cracked cliff.

This stunning concert hall has become a symbol of Iceland's national recovery.

One of the tallest buildings in Iceland, and perhaps, the most visually impressive.

The Chilean mountain is freckled with (relatively) small European telescopes.

The largest retailer of seashells in the world.

One-time winter retreats of prolific inventor Thomas Edison and his friend Henry Ford.

The smallest post office in the United States is no bigger than a broom closet.

Wading through a small lagoon reveals a secret, wild stretch of pristine beach.

Former utopian colony based on the belief that the universe exists in a hollow sphere.

This historic oak tree has been around for over 300 years and might last for 300 more so long as it doesn't fall apart first.