While most wind tunnels test scale models, the "Cave of Winds" was large enough for actual airplanes.

The actual model from the original "Star Trek" series is now on display at the National Air and Space Museum.

The "lovely red Vega" of the legendary record-settling pilot.

A gorgeous mural outside a beloved D.C. restaurant pays homage to famous Black Americans.

A historic estate packed with George Washington's heirlooms, and its own nuclear bunker.

World War II-era bunkers are hidden under the beaches of this picturesque park, which is still scattered with wartime watchtowers.

One of the dwarven trees dates back to 1625 and survived the Hiroshima bombing.

The controversial urban planner who designed Washington, D.C., was buried in Maryland, and can presently be found in Virginia.

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.

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

Volcanic stone sentinels stand watch at a Korean Bell Garden in Virginia.

This 16-foot, intricately detailed model of the Gearing-class destroyer has been called the most detailed model ship ever built.

An unusual ode to the late Irish playwright, complete with a squiggly bust and coffin-shaped bench.

A statue of the legendary Celtic warrior queen who fought the Roman invaders stands in one of the cities she once destroyed.

She stares out across six lanes of traffic, clutching a musket and infant with determination.

This one has sailed five times as far as Sir Francis Drake's famous ship.

Come for the flowers, stay for the bats!

England's most famous front door has an accidental doppelganger.

A series of carved figures that scandalized British society.

London's smallest police station is barely the size of a phone booth.

A unique tribute to the millions of animals who served and died for the British military.

The bronze uniforms commemorate the vital role of women during World War II.

This ancient Egyptian obelisk still bears the wounds of World War I.