Home to items never before seen by the public.

The tomb was guarded by soldiers from both sides of the war, and some left their initials carved in the brick.

These unusual rooms on wheels are holdovers from the 1960s.

Under a playground is a little-known sealed train tunnel that likely contains the bodies of workers trapped by cave-ins.

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

An organ located deep within a cave, whose "pipes" are the geological features of the cave itself.

The only recreation of William Shakespeare's indoor playhouse.

Outdoor exhibits explore the contributions of European, African, and indigenous peoples to American frontier culture.

The ruins of this Thomas-Jefferson-designed mansion have been left to crumble since the Christmas Day they burnt down.

Edgar Allan Poe's old dorm is now a shrine to the author's legacy.

Hidden for 165 years inside a building designed by Thomas Jefferson are the remains of what may be America's first educational chemistry lab.

The story behind the mysterious symbol painted in front of the historic university's famous Rotunda.