The unassuming structure was part of a Major League Baseball stadium.

This candy-colored storybook village originated as a 19th-century Methodist campground.

The oldest platform carousel built in the United States continues to delight children in Martha’s Vineyard.

The filming location of a shark attack in Steven Spielberg’s famous shark movie.

This lakeside tower is the third attempt at getting a tourist destination to stick on the spot.

Centuries-old hoofprints and wagon tracks reveal themselves after a good winter storm.

The oldest surviving presidential residence in the United States.

America’s smallest national park site is the former residence of exiled Polish national hero Thaddeus Kosciuszko.

Alexander Hamilton’s creation caused quite a bit of controversy.

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

The sounds of the world's largest fully functioning pipe organ dazzle shoppers at a Philadelphia Macy's.

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

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

The first American department store, and home to the largest operating musical instrument in the world.

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

The longest covered bridge in Delaware.

One of the oldest surviving Swedish-American homes in the United States.

This weeping, 10-foot-tall sculpture was a maquette for a 9/11 memorial.

This splendid Versailles-inspired mansion has the largest French-style formal gardens in North America.

Considered by many to be one of the most dangerous highways in Alaska.

A suburban street in Anchorage doubles as a runway, and each home has its own airplane hangar.

During the summer, surfers in Alaska take advantage of this inlet’s unusual water patterns.

A high school astronomy enthusiast designed this model of our solar system to be traversed on foot.

The ruins of a town wiped out by the second-largest earthquake in recorded history.