This mansion was made famous by its colorful cast of owners and location along the Sante Fe Trail.

This museum presents a dogged pursuit of 500 years of veterinary history.

A wax effigy of St. Valentine hides one of the saint's relics.

A remarkably opulent mansion with a tragic history.

An adorably sweet display of sculpted Precious Moments figurines.

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

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

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

Where the author wrote her beloved "Little House" books.

A kitschy, creepy St. Louis mainstay.

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

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

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

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

The history of the treatment of mental illness, illustrated in all its gory detail, and housed in an asylum.

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