A brutalist gem towering over the heart of Milan.

Small on the outside, big on the inside, this church is an astonishing act of visual deception.

This grisly effigy displays an early Christian martyr who was skinned alive and beheaded.

This replica of the Greek structure is in the heart of Nashville.

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

This popular park is home to a sea serpent sculpture that now overshadows the twisted history of its creation.

The "World's Largest Underground Business Complex," a 55,000,000-square-foot city underneath Missouri.

A celebration of the animation wizard's childhood home and antique railroad memorabilia collection.

This futuristically sylvan church is a glass-enclosed marvel of modern architecture.

This monumental Jesus is often referred to as "Our Milk Carton With Arms."

The spot where three Protestant clergymen were burned at the stake during the reign of "Bloody Mary."

Once one of the largest rooms full of books in the world, this bookstore basement is still a treat for bibliophiles.

J.R.R Tolkien, C.S. Lewis, and other "Inklings" met at the Oxford pub to discuss the now legendary fantasy stories they were writing.

Nature's biggest mammal swims in landlocked Oklahoma.

This giant green head remembers one of America's jazz giants.

Undone by Prohibition, this abandoned brewery-turned-flour mill is now ready for its third act.

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

A piece of John the Baptist in the American heartland.

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

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

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.

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

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

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