The Denver airport is guarded by a 32-foot-tall sculpture of a demonic horse.

L. Frank Baum wrote part of the "Wizard of Oz" series in this wooden Victorian beach resort.

Behind this beachfront shop lies a spectacular, colorful sea cave with an equally colorful past.

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

This church built atop a gas station promises to "equip you for the next stage in your life’s journey."

The romance of early commercial flight still fills this Art Deco destination.

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 isn't your average roadway—it's actually a National Park and a transportation pioneer.

A former major munitions plant that has been converted into a sprawling art space.

This sprawling museum holds one man's giant collection of real tanks.

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

This stately building in Alexandria, Virginia was built by Freemasons to honor one of their most famous members.

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

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.

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