An enormous pink granite batholith, long attributed with spiritual powers by the Tonkawa Indians.

A Victorian mansion, painstakingly reproduced to appear just as the the Munster's family home did on TV.

A popular swimming hole that hides one of America's most deadly diving spots.

A modernist landscape of water and sci-fi concrete.

Continuing the tradition of the dime museum in style.

An emerald-green grotto just a short trip from Austin.

The abandoned remnants of a little sanctuary for world peace that fell into disrepair.

An experimental, automotive replica of Stonehenge.

Other-worldly rock formations and ancient fossils abound in this unique stretch of Nebraska badlands.

This erect, phallic geological spire wasn't always named so domestically.

A waterfall 600 ft. inside a mountain, once the bane of gold miners, is now a spectacle of nature.

An entire city block built completely out of petrified wood.

Known as "The Hill of the Little Devils."

This prehistoric sinkhole lured exclusively male mammoths to their death, much to the delight of science.

The ravine where Jesse James supposedly performed an impossible jump to evade capture.

Just a man taking his prehistoric pet for a stroll.

Hidden behind Lincoln's head is a 70-foot-long chamber containing enamel plates documenting American history, sealed in a teakwood box in a titanium vault.

The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

Life-sized sculpture of a blue whale made of hand-recycled plastic trash.

This towering volcanic plug stands out among the dramatic formations that dot this otherworldly desert valley.

Setting this massive marionette aflame rids Santa Fe of doom and gloom for another year.

In a largely deserted ghost town, a little brick building recalls its history as a gold rush hub and haven for outlaws.

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

Some 2,000 carvings show this rare desert spring has been an oasis for travelers for over a thousand years.