The plants form a living library and laboratory for researchers and students at Michigan State University.

This mechanical wonder towers above a river in Michigan's capital city.

One extremely determined man's homemade universe.

Where else would you expect to find the gravesite of European royalty than the windswept dunes of rural Northern Michigan?

This enchanting forest trail leads to ethereal abodes and a giant bird's nest.

A tribute to the twin ideals of religion and patriotism, built by a Catholic priest from rocks, glass, and innumerable found items.

This unique zoo is the only place in the world where you can see all 15 species of crane.

This circus town museum recognizes the outstanding clowns of history.

The evolution of recreational vehicles and motorhomes is on display in the “RV capital of the world."

This museum celebrating the almighty dollar lets visitors literally stand in the shadow of a million bucks.

A bloodstain from "the wound of the transverberation of the heart."

These mansions date back to Chicago's days as a brewer's paradise.

One of the largest pieces of scientific equipment ever carried on a NASA space shuttle sits in a Chicago alley.

Cemetery featuring rare glass-fronted columbarium.

The world's only known button museum.

A gothic church spire sits atop this skyscraper, the tallest church in the world.

A monument to the art of slicing people open.

An ancient woodland that inspired a young J.R.R. Tolkien.

Software company Epic Systems has created one of the strangest and largest workplaces of all time.

A student designed this 3D-printed scale replica of the entire university campus.

Visitors to this arboretum are greeted by three smiling giants crafted from sustainable materials.

The angel of death appears to weep black tears at this grave marker.

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.

An unoccupied lighthouse encased in layers of ice from the waters of Lake Erie.