A "gravitational anomaly" located in the redwood forests just outside of Santa Cruz, California.

35,000 grape hyacinths flow like water down a garden hill.

A set of ancient drawings in the desert of Peru that are so massive, many of them can only be fully seen from the sky.

One of the largest ancient geoglyphs in the world is a tall desert god used for predicting the weather.

A mysterious ancient network of thousands of perfectly straight lines stretching across miles of Bolivian desert.

This memorial pyramid marker honors one of the United States Government's first official camel riders.

Ancient human, animal, and geometric figures drawn in the earth.

A whimsical tower with a spiral staircase, inspired by the Space Age and the Möbius strip.

To honor his gardening wife, this yard artist turns bowling balls into playful, colorful sculptures.

This Roman relic was discovered in Scotland by a mudlarking ferryman.

A mysterious monument covered in a binary code marks the heart of tech.

The tragic tale of the dentist who pioneered the use of anesthesia.

A burial ground of rusting metal grave markers.

The outcropping is graffitied with the name of the beloved musical Muppet television series.

A lawless town deep in Death Valley was famous for its riches and death rate.

Baltimore's classic clock tower was once topped by a rotating, 20-ton medicine bottle.

This abandoned asylum was once a state of the art facility before devolving into one of the most deadly mental institutions in American history.

Only a shrine remains at the site of the catastrophic nightclub inferno that killed 100 Great White fans.

A plaque marks the spot on the bridge where one of the first elephants in the U.S., Little Bet, was gunned down.

Mysterious stone tower featured in many alternative histories of the New World.

A crumbling stone stable and carriage house are all that remain of a manse that was once filled with Egyptian artifacts.

Unicorns, elephants, and bears, oh my!

This fairy tale-themed amusement park is now abandoned, and childhood metaphors abound.

Tucked away in a corner of a Maine general store there was a museum devoted to an equally beloved and reviled local soft drink.