The Kirkland Monument remembers a selfless Civil War hero who braved the battlefield to give water to his dying enemies.

At Washington's Dulles Airport is a satellite museum (no pun intended) with three quarters of a million square feet of aircraft history.

Rumor has it the hot dog stand was targeted by two Russian nuclear missiles.

This colonial tavern played host to George Washington, Thomas Jefferson, and other famous early Americans.

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

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

An original apothecary from 1792.

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

The angel of death appears to weep black tears at this grave marker.

Collecting 700 years of mechanical death-dealing, the NRA's sprawling gun museum is a revealing testament to the American obsession with armament.