A memorial for an outsider theorist who believed that the planet is actually hollow.

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

A free park where visitors can learn about and collect 440 million-year-old fossils.

Kwanu'sila the Thunderbird has been silently watching over Chicago for more than 100 years (kind of).

This morbid, delightful curiosity shop offers everything from animal bones to human teeth.

These murals have been brightening a Chicago beach for more than 30 years.

Chicago's museum dedicated to the history of bondage and fetishism is more textbook than titillation.

A board game enthusiast's love for the game, memorialized forever.

A science teacher's dream.

Chicago’s last original drive-in restaurant is a family-run hot dog joint that started in 1948.

Half-sized replica of the Leaning Tower of Pisa built to honor Galileo.

This historic, century-old theater is still in operation.

An oddity shop filled with taxidermy, funerary memorabilia, and more.

A celebration of one man’s obsession to collect the strangest items imaginable.

A vast collection of rare, historical, and vintage supercomputers.

A 10-foot segment of the concrete barrier stands quietly on the campus.

A man's home is his castle.

The first piece of public art dedicated to LGBT rights.

This speakeasy continues the Prohibition-era legacy of Harlem's jazzy Swing Street.

A modern zoetrope on the New York City subway.

A curious friendship between two inanimate ladies.

This Dutch Colonial home is the oldest remaining farmhouse in Manhattan.

Commemorating the spot where the famous scientist fed his pigeons.

Rummage through this sunken ship, but leave your scuba gear at home.