A psychedelic labyrinth on the San Francisco bay.

This massive home was constructed by one of the greatest conservationists in Colorado history.

A memorial dedicated to the victims of the Columbine High School shootings.

This portion of a lovely Belize beach is infested with (harmless) sharks and rays.

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

This former mining town was named the most toxic town in America.

Entombed in this strange, white stone hill are the deadly remains of radioactive weapons production.

This narrow canyon has been carved by the river over thousands of years into spectacular and curious forms.

One car at a time please.

Birthplace of America's first documented serial killer.

Grave of the man allegedly responsible for a series of infamous murders in Boston in the 1960s.

The only structure left with direct ties to the Salem witchcraft trials of 1692.

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

Enjoy an overnight at an old haunted B&B site of the Borden family murders.

To avoid the demolition costs this abandoned drawbridge was simply left in the up position.

Ruins of a historic medical facility sits eerily by the water.

A religious-themed park filled with folk art to bring biblical stories to life that fell into disrepair and now being restored.

A stunning, two-tiered waterfall made famous by poets, artists and the legend of a ghost dog.

The watery grave of an impractical idea.

The basement bowling alley of this St. Paul dive bar is decorated with thousands of dollar bills.

This picturesque cliffside beacon no longer calls to sailors but shines once a year in honor of a famous shipwreck.

This bright yellow building is packed with sweet treats from all around the world, from chocolate-covered crickets to whoopie pies.

This secret gem of a toy store houses a rideable carousel populated with fantasy animals.

The Midwest's reigning king of surplus stores is full of nothing you need and everything you want.