This humble star-gazing center touts itself as the "Birthplace of American Astronomy."

Underwater art project will double as a massive artificial coral reef to help regenerate the damaged ecosystem.

A hotel masquerading as a medieval castle overlooks a Mexican city.

These sailing ship-shaped chandeliers are believed to have been a gift inspired by faith.

A uniquely robust and historic look at Mexico's omnipresent dance with Death.

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

Kentucky's longest operating jail is now a spooky spot to spend the night.

This modern castle sat empty for decades before a fire inspired its builders to complete its luxury halls.

Outstanding collection of 19th century medical instruments includes a life-size figure cast from as many as 200 cadavers.

Home to some of Indiana's last bison herds.

Discover a beautiful natural paradise, minutes away from a thriving city.

The Fun Farm weaves fairy tales, myths, and magic into a magnificent collection for visitors to explore.

An abandoned asylum incorporated into a college campus.

It took more than 20 years and a sharp eye for one man to assemble this quirky collection.

Abandoned former poorhouse, bible college, and haunted house in an Ohio hamlet.

See the nearly two-century-old ruins of pre-railroad America at the former site of a lock on the Ohio and Erie Canal.

A monument to a Native American leader who was known for never breaking a promise and met his end after signing a deal with white settlers.

Bison, America's national mammal, are staging a slow comeback in Ohio's prairie parkland.

A retro walk through the history of the tube.

If you want to build a better mousetrap, first consult this small museum's massive collection of trapping tools.

An unassuming 13-acre park is home to over 12,000 roses.

A 2,000-year-old Adena burial mound located along a busy street in Columbus, Ohio.

The entrance to this sinisterly named tunnel hides behind a Tim Hortons.

The largest earthwork effigy in the world.