America's Most Wanted's set resides in this tribute to the history of crime and punishment.

Before founding the American Red Cross, Clara Barton had a tremendous humanitarian impact by locating thousands of missing soldiers.

During the Industrial Revolution this “Temple of Invention” was full of intricate miniature machines and gadgets.

One of the dwarven trees dates back to 1625 and survived the Hiroshima bombing.

The Byzantine, pre-Columbian, and medieval art at this stately mansion are some of the most under-appreciated collections in D.C.

Fittingly, America's museum of architecture is itself a magnificently designed old building.

This former lieutenant governor's home is brimming with curiosities.

This institution collects the history of burlesque dancing with a titillating collection of ephemera and pasties.

The bullet-riddled wall from the St. Valentine's Day Massacre, bloodstains enhanced for your viewing pleasure.

This incredible collection of vintage pinball machines can be played at 25 cents a pop.

Stepping away from the glitz of mobsters and casinos to learn about the other history of Vegas.

Thousands of artifacts relating to human sexuality, including the world's largest sex bike.

At Chicago's revered Field Museum, visitors are invited to learn about and literally explore DNA.

This museum celebrating the almighty dollar lets visitors literally stand in the shadow of a million bucks.

A monument to the art of slicing people open.

A replica viking ship from the Chicago World's Fair is still in dry dock in an Illinois park.

Every day a troupe of pampered water fowl walk the red carpet to their favorite fountain.

The hotel where Martin Luther King Jr. was shot is now a museum dedicated to his work.

The bad-ass ride of a soul legend, housed in one of the world's few soul museums.

The "Jade Museum" is full of thousands of intricately carved works of art made from various precious stones.

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

The site of a 19th century "dream city" that almost rivaled Chicago before being swallowed by the Indiana sand dunes.

The origin of the Nixon tapes is rooted in technological incompetence as much as secrecy.

One lonely, modern pyramid has gone from corporate think tank to deserted boondoggle.