A Museum of Holography frozen in 1974.

A gothic church spire sits atop this skyscraper, the tallest church in the world.

This massive stained-glass masterpiece is thought to be the largest Tiffany dome in existence.

Partially submerged Buddha heads freckle Chicago’s neighborhoods.

A haunting statue called "Eternal Silence" has quite the reputation among visitors with active imaginations.

The exact whereabouts of this surreal cabinet of curiosities are rarely the same place twice.

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

A historic dam made famous for its turbines and feature in a Hollywood classic.

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

The remains of the iconic train crash from the movie The Fugitive can still be found rusting along the Great Smoky Railroad.

This road in the Great Smoky Mountains was supposed to assuage a displaced community, but ended up a $52 million dead end.

The world's only international cryptozoology museum is host to an unrivaled collection of mysterious objects.

Victorian-era Egyptomania left its mark on this Nashville landmark.

This historic train station has been converted to a locomotive themed hotel.

An abandoned bait shop with a front lot filled with storage boxes.

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

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

A psychological self-portrait in the form of a giant, segmented head.

This structure among the trees was the result of divine inspiration.

This 19th century granite fortification is one of the most well preserved forts in New England.

The first bridge observation tower in the U.S. offers one of the best views of Maine.

On top of Gibbet Hill lie the ruins of a lavish turn-of-the-century estate that never quite came to be.

A morbid secret lies hidden within the beautiful walls of the Boston Athenaeum.

This old cement mine has been used as everything from a mushroom farm to a recording studio.