Ant sculptures march up the side of what used to be an iconic spot in punk rock lore.

Yo, Adrian!

When the Austin Dam failed it destroyed much of Austin...and then it failed again.

The remains of a community that was forced to move for a dam that never materialized still rot in this Pennsylvania park.

Hellam Township is reputed to feature seven remote gates, which when passed through in the right order, open an entrance to hell.

This shrine to McDonalds' most iconic sandwich holds a 14-foot tall burger.

The Pennsylvania landscape depicted by a quarter mile of mosaics made from used road signs.

This lush forest valley was once mined for lumber to the extent that it was once nicknamed "The Pennsylvania Desert."

Once the "Eighth Wonder of the World," this iron railroad bridge was decimated by a tornado.

Collection of trolley cars in the woods represent one man's attempt to preserve transportation history.

Sail through this subterranean show cave that is home to a legend that would go on to name nearly everything around it.

A giant toy jack made of numerous welded-together fire hydrants.

This 38-drawer structure claims the superlative title, but it isn't the world's only giant filing cabinet.

The sweetest graveyard in the world is filled with headstones for dearly de-pinted ice cream flavors.

Prehistoric animals decorate this popular outdoor park.

The farm where one of America's greatest leaders was raised is now a well-appointed landmark.

The longest navigable underground river in the United States is home to countless blind and albino animals.

A 300-yard long natural tunnel runs through a ridge deep in the Appalachian Mountains.

This psychedelic tromp l'oeil seems to be beckoning drivers to crash into a wall.

One of the oldest living oak trees in the Southeast.

The perfectly named cave drop is the deepest in the continental United States, almost matching the height of Seattle’s Space Needle.

A colorful square marks the heart of the city's LGBTQ community.

A curious whirlpool formation supposedly capable of entangling or engulfing branches, tree trunks, or whole rafts full of hapless tourists.

A stockpile of childhood lunch pails turned collectibles.