This replica of the Greek structure is in the heart of Nashville.

This rare triple-jurisdiction drawbridge passes through Virginia, Maryland, and Washington, D.C.

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

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

World's largest herd of white deer populate a former U.S. Army depot.

This oversize piece of novelty cookware once cooked the largest pancake in the world.

World War II bunker still standing on the New Jersey beach.

Three and a half miles of cliffs, rocky beaches, Gilded Age mansions and 40 Steps to nowhere in particular.

What looks like a simple quaint estate in rural Pennsylvania was in the 18th century home to a small monastic community.

A museum dedicated to the history & joys of the trail & your best chance to see hikers throwing up ice cream.

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

A local prank turned town icon.

This elaborate towering structure was once famed for its revolutionary height.

Yo, Adrian!

An indoor miniature village and labor of love for Laurence Geiringer, a model railroad enthusiast.

A clone-tree in Washington Square Park sprung from seeds that went to the Moon and back.

This eerily well-preserved coal town was saved from destruction by a Sean Connery movie.

This charming colonial alleyway is one of the oldest continuously used residential streets in the U.S.

Tour the dark and beloved poet's former cobwebbed basement, which may have inspired "The Black Cat."

Mysterious rocks that ring musically when struck.

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.

The body of St. John Neumann and his collection of hundreds of relics, on display in a Philly church.