Museum with an extensive collection of Cray supercomputers and related artifacts.

Small-town museum dedicated to outer space ... and bicycles.

Built in 1933, this unique ballroom is nicknamed the "floating dance floor."

The center of the only hemisphere that awards visitors with a commemorative coin.

This scenic overlook commemorates the tragic death of a soon-to-be-married lumberjack.

Shop of curiosities with a dinosaur museum tucked in its basement.

The first and only museum dedicated to stained glass and horology opened outside of Chicago in 2017.

Every winter, the wind carves blocks of frozen water into beautiful abstract shapes inside this unusually curved tunnel.

A bizarre house filled with an astounding array of collections.

A large circus museum with summer performances.

The remains of a enormous earthen figure of unknown origins cuts across a rural Wisconsin road.

An unassuming house in Wisconsin hides a transient artist’s magnum opus.

A strange and haunting monument of unknown origin in the historic Graceland Cemetery.

An enormous park-like oasis, full of famous Chicagoans' graves.

Fragments of architectural wonders from around the globe are embedded in the newspaper building's walls.

A curious collection of miniatures in a quiet corner of the Chicago Children's Museum.

A shining sculpture made of 3,115 lights, the number of visible stars in the Northern Hemisphere.

All of Chicago's wood-paved streets are long gone but two alleys remain.

No one knows how many bodies are in this vault in a Chicago public park.

This whimsical Oz-themed park had a wonderful impact on the surrounding neighborhood.

This 19th century mansion façade adorned with immigrant patriotism is a symbol of Louisville’s history.

One-of-a-kind preserved ruins of an abandoned 1880s church in Chicago's Pilsen neighborhood.

Each of these gorgeous, intricately decorated rooms is painstakingly crafted to the scale of 1 inch: 1 foot.

This massive stained-glass masterpiece is thought to be the largest Tiffany dome in existence.