This local gem houses the largest collection of pre-Raphaelite paintings outside of the U.K.

A museum dedicated to exhibiting remarkable outsider art.

Remnants of a storybook amusement park hidden behind a strip mall.

A local farm's collection of unusual structures from a now defunct storybook amusement park.

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

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

The world's oldest continuously operating airport was founded by the Wright Brothers.

A lovely aquatic park built by a one-armed Civil War veteran who made a fortune from lotuses.

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

The United States Capitol's former columns still stand.

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

This lovely picnic spot featuring thunderous jet landings is an aircraft spotter’s dream.

Home to a vast and influential collection of Shakespeareana.

Art deco landmark on the outskirts of Washington, D.C.

This stunning blue and gold room changed cities twice before becoming part of the Smithsonian.

Washington's iconic carousel has a nice piece of Civil Rights history.

A muscular Art Deco monument represents the struggle between regulators and unbridled markets.

Fittingly, America's museum of architecture is itself a magnificently designed old building.

The bank that helped fund the Mexican-American War and the purchase of Alaska met its downfall after helping Augusto Pinochet launder money.

The national park was once a plantation estate.

The first purpose-built art gallery in the United States is once again open as a center of craft arts.

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

This seemingly out-of-place gas station by the Watergate hotel was once described as the most expensive gas station in the world.

This unacceptably tall building was the real reason for Washington, D.C.'s skyscraper ban.