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

Yo, Adrian!

This overlooked courtyard and museum celebrate Benjamin Franklin's life and achievements.

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

Thomas Jefferson's estate is home to hundreds of varieties of historic fruits and vegetables.

Berthed at the Charlestown Navy Yard in Boston, "Old Ironsides" is the oldest commissioned warship still afloat.

Historic Hull Street was actually the first street with a proper name in the Boston area.

The site of Paul Revere's historic two lantern warning.

The first bell ever cast in Boston was cast by Paul Revere...and sounded terrible.

The colonial home of Paul Revere during the American Revolution.

What was once a true peninsula has now been filled in, causing the water to recede and leaving many streetside "waterfronts" and landlocked "islands."

A former waterfront market is now in the center of town due to some interesting Boston engineering.

This small-town pizzeria won the Hollywood lottery.

The world's largest collection of historic U.S. military naval vessels.

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

Plymouth's huge yet little-known memorial to the Pilgrims.

A precariously balanced rock perches on the edge of a cliff created tens of thousands of years ago by glacial erosion.

In upstate New York, gorgeous waterfalls and a watermill are slowly being reclaimed by nature.

One of the Seven Wonders of the Modern World holds the world's tallest metal staircase.

A tunnel that brings more than a century of history to life from the deepest parts of the Niagara Gorge.

One of Frank Lloyd Wright's greatest—and favorite—architectural masterpieces was almost lost.

This restored house is like a time capsule of the president's unconventional inauguration.

The seat of Buffalo government is a gorgeous Art Deco palace.

A monument to a Polish general who fought the American Revolution and became the "Father of the American Cavalry."