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

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

The American Revolution was galvanized into serious action due to the tragic clash with British soldiers that occurred at this location.

A monument celebrating the idea of reaching inaccessible places.

San Francisco's newly reopened hands-on science museum.

Lady Liberty's first beacon of enlightenment is now displayed in a museum near the statue.

The former home of the Nobel Prize-winning American writer is now home to dozens of six-toed cats.

A three-story copper skybridge connects two Manhattan buildings with Art Deco luxury.

Staircase winds down the side of Telegraph Hill through gardens, wild parrots flying overhead.

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

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

One of the world's oldest and most massive living organisms is a grove of quaking aspens.

Carnivorous plants, medieval aphrodisiacs, and the largest original wood structure glass conservatory in the western hemisphere.

Medical and zoological curiosities for sale.

How did the right arm of a 13th-century English bishop wind up in a Connecticut church?

This small shop walked so America could run on Dunkin'.

See massive fossils that are over 200 million years old in northeastern Arizona.

Multiple monuments to a grizzled old mutt that survived the landscape of Butte's treacherous Berkeley Pit.

A smoke stack so large, the Washington Monument could fit inside!

The only road through the heart of Glacier National Park.

A sprawling museum located on the former site of the Orphan Girl Mine.

New fungal and bacterial species call this deadly lake home.

The oldest continuously-operating Chinese restaurant in the United States has been in business since 1911.

The marker offers a rare chance to be in four U.S. states at once, though there's some controversy over its geographic accuracy.