This open air cathedral invites all faiths to worship under the only roof big enough to fit them all: the sky.

The eccentric and colorful pavilions of Tower Grove park are a beloved and overlooked symbol. 

The first rural cemetery west of the Mississippi is home to the elaborate tombs of St. Louis' local beer barons.

The Old Courthouse takes visitors on a captivating trip through St. Louis' timeline.

This mausoleum is the final resting place of one of St. Louis's richest and most tragic families.

During the 19th-century, this park was a vital trading fort.

This huge metal monument is slowly being stripped to its concrete skeleton.

An ancient knight and a symbol of the city's freedom.

A wunderkammer of gold and silver reliquaries and ancient saintly bones.

Gargoyle head that brings good luck.

When a supermarket opened up shop within a medieval building it became protected by UNESCO on a technicality.

A chain of 16 wondrous lakes formed as a result of the gradual dissolution of soluble layers of bedrock.

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

This mosaic-covered bar is brimming with curated curios.

The poems Nathaniel Hawthorne and his wife Sophia etched into its windows are still visible today.

This small section of the Sleepy Hollow Cemetery is rotten with famous authors' graves.

Louisa May Alcott based “Little Women” on her experiences growing up in this house with her sisters.

The Wright Tavern is possibly the most important building in Concord Massachusetts to the American Revolution.

This abandoned prison castle has become an imposing gallery of graffiti art.

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

Known as the "Cross At The Crossroads," this massive metal cross is just short enough to avoid the FAA.

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

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

Once one of the world's great cities, Cahokia was a place of religious worship, trade and mass human sacrifice before being mysteriously abandoned.