Undone by Prohibition, this abandoned brewery-turned-flour mill is now ready for its third act.

A subterranean haunt where wine and homemade biscottis are always on the menu.

A piece of John the Baptist in the American heartland.

An abandoned concrete jungle surrounded by a lush park.

The red brick house where the father of rock 'n' roll wrote some of his classic hits.

This mosaic-covered bar is brimming with curated curios.

A museum celebrating the Victorian obsession with hair art.

The maximum security facility was once thought to have "the bloodiest 47 acres in America."

The show pony of cave systems, Fantastic Caverns manages to live up to its name.

Tucked away between two 19th-century buildings, this small shop specializes in the macabre.

The "World's Largest Underground Business Complex," a 55,000,000-square-foot city underneath Missouri.

A historic house in St. Louis was plagued by a series of suicides committed by family members involved in a successful brewery.

400 million-year old limestone caverns nestled in the Ozarks served as shelter and a hideout for cultures throughout North American history.

The world's largest man-made underground caverns offer unparalleled underwater wonders.

This fully restored synagogue explores the American Jewish experience along the old frontier.

A seven-story 1920s mausoleum outside Denver houses thousands of remains.

In the middle of a suburban Denver neighborhood is a cave that once provided solace for a prominent Ute chief and his family.

The childhood home of Henry Jones Jr. is now an adventure-themed bed and breakfast.