Military artifacts from the Salvadoran Civil War are displayed in this small but notable museum.

A Mayan village preserved for centuries in volcanic ash.

Antoine de Saint-Exupéry's 1943 book shares a surprising connection with El Salvador.

This unassuming home was once “grand central station” for the Underground Railroad.

In 1869, Swiss and German immigrants settled in this small town in the mountains of West Virginia.

This mill on Lake Erie appears to shrink as a viewer approaches thanks to an optical illusion.

A sacred site for Native Americans surveyed by George Washington and owned by both King George III and Thomas Jefferson.

Mile-long cave system near Great Smoky Mountains.

Tucked behind the Institute of Neurological Science down a decrepit street resides the largest display of human brains in Latin America.

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.

A museum within a museum, devoted to history's most questionable medical devices.

The history of the treatment of mental illness, illustrated in all its gory detail, and housed in an asylum.

Fascinating museum dedicated to the under-appreciated medical history of urology features some wince-inducing devices.

A former Confederate hospital serves as a remembrance of wounded and dead soldiers.

An astounding collection of medical specimens, including bits of President Lincoln.

This war hero's old shop remembers the fine line between medicine and quackery during the Revolutionary War.

A "hospital" where people went to be quarantined, die, and be buried in the yard.

House of vintage taxidermy and Steampunk sculptures in a quiet Pittsburgh neighborhood.