A daily replay of the experiment that proved the rotation of the Earth.

The taxidermy remains of the most popular pony in children's literature.

This extraordinary Depression-era expenditure was modeled after a postcard of a Mediterranean hotel.

Scenic mount trashmore, Virginia Beach's most curious waterfront still has a couple of secrets.

Nine of the very few concrete ships ever made in the U.S. are beautifully decaying off a Virginia pier.

The maritime museum that boasts the largest nautical library in the western hemisphere.

The site where Poe "in great distress, and ... in need of immediate assistance" likely died.

Memorializing an American tragedy of massive proportions.

Steepest flood safety railway in the entire world.

Baltimore's classic clock tower was once topped by a rotating, 20-ton medicine bottle.

Rediscovered after a century, the father of the American Navy was reinterred in something dredged up from Davy Jones' Locker.

A Maryland museum dedicated to Black history, housed in a historic church.

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

A pre-Industrial Age iron furnace and the site of a nearly-forgotten piece of Black history.

Affectionately known as "Lord Bot," this historic statue has a cult social media following and rightly claims to be “the most metal inhabitant of the Wren Yard.”

Giant busts of 42 U.S. presidents are sitting in a field in Virginia.

A Civil War Museum with some notable medical antiques.

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

The tallest The Church of Jesus Christ of Latter-day Saints temple in the world soars above the Beltway.

Home of the physician who set the leg of John Wilkes Booth after the Lincoln assassination.

The privately owned cemetery that holds room for Washington's finest when they step down from life.

Built by the patriotic residents of Boonsboro in a single day.

A 1,100-ton train fell through the floor in 1953. Workers got it patched up in just 72 hours.

A traveling postal dog covered 48 states and more than 140,000 miles, and he lives on as taxidermy, patched up with a rabbit's foot and a pig's ear.