After miraculously surviving a giant flood, the 19th-century nut tree and its offspring are protected with their own tiny park.

Another in a long tradition of legends regarding infernal seats.

A museum devoted to osteopathy and its creator, Andrew Still.

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

European castle ruins in an American state park are actually the product of death and grief.

Erosion and time have created a naturally-formed water park.

Giant granite rocks standing end-to-end like a train of circus elephants.

Less a museum than a bizarre fantasy world created by artists and engineers.

What was meant to be a temporary exhibit is now a permanent fixture at the St. Louis Zoo filled with beautiful birds.

This wooded grove of beautiful hand-built stone grottos is a hidden gem within a shuttered Franciscan monastery.

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

This titanic oil company sign is a reminder of the Americana boom of the 1970s and also its commoditization.

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

The Magic House provides a beautiful and creative environment for curious youngsters to get their knowledge on.

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

Entombed in this strange, white stone hill are the deadly remains of radioactive weapons production.