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

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

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

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

Look closely and you’ll notice that the color changes a third of the way up the tower.

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

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

Largest Roman Catholic church in North America.

This old-fashioned carhop restaurant gave the world the waffle cone.