What was once a presidential estate is now an exotic menagerie and home to the Budweiser Clydesdales.

Belly up to the bar in Cowtown, don't forget to buy some boots.

A modernist landscape of water and sci-fi concrete.

An urban forest overtakes what was the greatest failure of utopic urban housing.

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

This historic cliffside mansion uses a natural cave for air conditioning.

Fresh wooden posts have been added to ancient holes to recreate a primitive henge clock.

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

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

Man-made geyser that rises to the exact height of the Gateway Arch.

Oversized statues are just the tip of this nostalgic Americana roadside attraction.

The original vault that held the president's remains still stands, empty, not far from where he was finally buried.

When you visit his grave, be sure to rub the Great Emancipator's nose for good luck.

The hometown of Popeye's creator is littered with a growing collection of granite cartoon characters.

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

Two Ming Dynasty lion statues guard the entrance to the journalism school.

The iconic remains of the original Academic Hall that burned down in 1892.

The obelisk meant to mark the founding father's grave at Monticello is actually on the University of Missouri campus.

A gem in the small Missouri town where Winston Churchill coined the term "Iron Curtain" and effectively began the Cold War.

This former small town was destroyed not by the motor oil it sprayed the ground with but by the toxic waste that was added.

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

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

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

A plaque on the side of a parking garage marks the burial place of a great Ottawa chief.