The home made famous by the 1983 holiday classic is now a perfectly preserved shrine to the movie.

The longest continuous underwater road in North America was built at the insistence of Franklin Roosevelt.

This abandoned seaside fortress is now simply an imposing ruin being taken back by nature.

This mosaic dedicated to John Lennon was tended for years by a Beatles super-fan.

Love, knishes, and best wishes from this legendary Lower East Side bakery.

This whimsical group of statues is a favorite of children who love to climb all over Lewis Carroll's beloved characters.

Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

One of only two commuter aerial tramways in the United States.

Elevated freight railway turned wildly successful urban park.

The only surviving prototype for Buckminster Fuller's house of the future.

The city is full of whimsical portals to another world.

The Beaux-Arts aquarium boasts a vast collection of saltwater and freshwater fish on an island in the Detroit River.

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

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

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

The 340-year-old house that inspired the classic Nathaniel Hawthorne novel.

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

America's first nuclear-powered merchant ship is now a time warp to the atomic age.

The land is home to swimming ponies and a legendary 18th-century treasure.

This candy-striped tower is the farthest east you can go in the United States.

The most photographed house in Maine looks good enough to eat.

This distinctive Crescent City tradition dates back to the days of horse-drawn carriages.

The world-record holder for the longest bridge stretching continuously over water.

The oldest family-run restaurant in the United States is a living museum of New Orleans dining history.