The "mysteries" of this quintessential roadside oddity were almost destroyed by neglect but were saved by fans of kitschy wonder.

This pebble beach is so beautiful that taking its rocks is against the law.

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 once-palatial plantation may have been the site where a draft of the Declaration of Independence was written.

The illuminated falls are a gem in North Cascades National Park.

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

This black shoreline is made up of exploded lava particles.

An abandoned theme park with a strange and tumultuous past.

Over 100 concrete munitions bunkers are all that remain of a Pennsylvanian village seized by the US government.

A cave's rare beauty held a cavernous secret hidden underground.

North Carolina's finest examples of Native American pictographs have survived for 5,000 years.

One of the world's largest automobile junkyards is a unique landscape of metal and moss.

A mysterious light floating in the trees of Arkansas may be a piezoelectric effect.

This ancient octopus-like tree was saved from destruction thanks to shady reporting.

A ship that lived many lives under many names is now known merely as the "Ghost Ship."

A recreated Stonehenge stands in a country field, complete with Easter Island moai heads standing as sentries.

These sub-farmland caves are home to a majestic stalactite known as the "Crystal King."

Memorial of the Salem witchcraft hysteria in the town of Danvers, where it all began.

Three prestigious academic collections come together to create a world-class natural history museum.

The story of Two Guns, Arizona could easily be described as a Shakespearian tragedy on Route 66.

A cabin completely covered in coffee mugs, where visitors are welcome to leave one of their own—if they can find an empty nail.

A well-preserved Ancestral Puebloan ruin tucked beneath a desert cliff.

Life in this isolated, hilltop lighthouse was lonely, but it sure was lovely.

Exact replica of the ancient monument, but much, much lighter.