This 29-ton granite ball spins around at the slightest touch thanks to a scientific phenomenon.

The resting place of a Civil War celebrity's amputated limb.

At 207 feet, one of the world's longest continuous escalators.

A small Richmond island dotted with the remnants of hundreds of years of history.

Parking garage where Bob Woodward met Watergate source "Deep Throat."

This pre-Revolutionary War grist mill ground corn and flour for soldiers in seven American wars.

This unique historical monument features large concrete spheres designed to resemble fallen stars.

The semi-reclaimed ruins of this canal were once part of an ambitious plan to reroute the mighty potomac.

It's just another skyscraper, but it's shaped like '90s cell phone.

A beautiful deserted greenhouse in the middle of a park.