Explore the largest pure gypsum deposit in the world, and go dune sledding while you're at it.

An unusual, super-sized grocery adventure awaits in an Ohio suburb.

A castle built by an eccentric medieval enthusiast in rural Ohio.

Rare recess caves fill this unbelievably beautiful Ohio park.

The largest earthwork effigy in the world.

Ornate limestone building now filled with geologic specimens, and more.

Tucked away in the forests of Indiana resides an abandoned waterslide that is now a popular graffiti haunt.

This whimsical park encourages its visitors and wildlife to roam on and around the various works of art.

A stunning, abandoned limestone quarry in southern Indiana provided the stone to erect the Empire State Building.

This bridge was constructed from the remains of the first Ferris wheel.

Inspired by a piece of concrete, these three pyramid-shaped buildings have been beloved Indianapolis landmarks for over 50 years.

A flamboyantly decorated bridge signals diversity and fellowship at the entry to Indianapolis' Broad Ripple Village.

This open air cathedral invites all faiths to worship under the only roof big enough to fit them all: the sky.

This memorial to the Mercury Seven astronaut stands at the site of his former elementary school.

For over 100 years, this Indiana town has had a tree growing out the top of the local courthouse.

Tombstones carved to look like tree trunks are used for multiple generations of family members.

Purdue students would lean over this iron fence to skirt campus rules against smoking and courting.

This stately clubhouse has showcased German-American culture for over a century.

Indiana's oldest sternwheel paddleboat has been plying the placid waters of Webster Lake for 90 years.

On the grounds of this study, Lew Wallace composed "Ben-Hur: A Tale of the Christ" and many other works.

Both funky and traditional, it's the oldest of its kind in Indiana.

One of the few authentic Japanese gardens in the state of Indiana and perhaps the most peaceful place in the city of Mishawaka.

A collection of sculptures and trails that appear to change with the seasons.

A former limestone quarry has found a new life as a flourishing community garden.