The oldest place in Hartford is a cemetery with thousands of bodies stacked beneath the grass.

These etchings reveal the history of a long-gone quarantine site.

An abandoned Depression-era zoo hidden just off the highway.

The "possessed" house that inspired "The Haunting in Connecticut" book and movie.

Holding multiple historical boats and an entire 19th century village, this New England attraction is the largest maritime museum in the world.

A museum designed by and dedicated to P.T. Barnum in the town where he is buried.

While many places make the claim, the Library of Congress says this restaurant is the birthplace of the hamburger.

A wunderkammer hidden on the top floor of the Hartford statehouse.

The 5.5-mile ring of steel posts around the Capitol Building is one of the largest (and most uniform) of its kind in the world.

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

Senators used to relax in the nearly forgotten marble tubs now hidden in the U.S. Capitol Building's basement.

Home to a vast and influential collection of Shakespeareana.

A little marble compass above George Washington's (empty) tomb in the Capitol marks where D.C.'s four quadrants intersect.

Perhaps the most scandalous statue of America's first president.

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

Home to items never before seen by the public.

The site of the climactic scene from the classic horror film is now a historic landmark.

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.

Soldiers were buried next to Lee's house in the center of Arlington Cemetery to dissuade the general from reclaiming his property after the war.

The rogue roots are gradually consuming some of the historic marble grave markers.

With some 500,000 books across five buildings, this bookstore is a reader's paradise.

A former copper mine which became a truly unsuccessful prison.

The ancient past meets the retro-future at these dinosaur tracks that are protected by a geodesic dome.