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

This unauthorized stone mermaid was secretly carved out of public stone before being permanently preserved.

A lush green oasis in the middle of Chicago.

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

This former nursery supplied plants for the creation of Chicago's largest park.

The final resting place of the world's first nuclear reactor.

This museum is dedicated to preserving Minnesota's lake culture through displays of vintage watercraft and rotating exhibits.

Witness to many historic moments in early Texas history.

One-layer pyramid in Indiana.

Located in the place where the Columbia space shuttle came down, a museum-memorial that is both touching and informative.

The biggest depiction of Don Quixote's love interest in the whole world.

Built in 1981 in collaboration with Andy Warhol, this giant piece of pop art stands on the campus of Colorado State University.

Fantastic collection celebrating the final send-off.

A giant silver apple a day keeps the perils of capitalism away.

This frog-themed restaurant was frequented by Picasso, Saint-Exupéry, and more.

Walk through spectacular aisles of hanging meat and wagon wheel–sized cheese at the world's largest wholesale food market.

Twelve grave-faced marble angels guard the emperor's tomb at Les Invalides.

This Parisian fountain is a little bit fantasy and a little bit nightclub.

The ruins of a Duke's bucolic dream, where camels once roamed alongside "Dutch" windmills and faux-Italian vineyards.

Medieval museum built over Roman baths that features famous tapestries of a lady and a unicorn.

Home to an endangered salamander, a full moon celebration, and a large spring-fed outdoor swimming pool.

This simple frog painting created by musician Daniel Johnston embodies the spirit of Austin.

This museum showcases the history and contributions of the U.S. Army to the medical industry, both on the battlefield and off.

The peaceful space is adorned by paintings by the famed abstract artist Mark Rothko.