An artsy hidden staircase leads to breathtaking views of San Francisco.

River pirates, murderous bandits, and serial killers used this Illinois cave as their debauched hideout.

A once-booming Mississippi River town with a history of racial violence is now eerie and mostly abandoned.

A notorious Route 66 eatery once frequented by Al Capone.

An abandoned meat mecca now serves as an excellent locale for urban exploration.

In one of America’s oldest mountain ranges, a long-awaited section of a scenic highway is now open to the public.

The juke joint where legendary soul artists ate, drank, and made merry.

All you ever needed or wanted to know about America's favorite whiskey, but not a drop to drink.

This Memphis recording studio launched the careers of Jerry Lee Lewis, Johnny Cash, and Elvis Presley.

At 135 years old and counting, this historic print shop is heaven for poster nerds and music buffs.

For two weeks every June, fireflies in the Smoky Mountains perform an astonishing light show.

A late sculptor's last project was to turn this abandoned cement factory into a castle-themed amusement park.

One of few surviving standpipe water towers in the U.S.

University City's quirkiest resident lives in a park named after its first.

A small town garden is dedicated to a psychic dog with the most soulful eyes.

This majestic tree has survived 400 years of storms, droughts, and floods, and is a beloved natural landmark in Missouri.

An unexpected but incredible collection of wildlife dioramas spanning rainforests, swamps, forests, and plains.

An abandoned factory along the Mississippi coated by a giant mural.

The ruins of a 19th century shelter run by the Independent Order of Odd Fellows.

A mysterious light of unknown origin on the backroads of Missouri.

In the St. Francois Mountains in the Ozarks at 1,772 feet above sea level, Taum Sauk Mountain is the highest (and possibly oldest) peak in Missouri.

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

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