A strenuous, unofficial trail leads to spectacular views in one of America's most remote national monuments.

This oasis-like spring in the Sonoran Desert is home to unique, endangered species.

Once a year, at exactly 11:11 a.m., this monument comes to life.

The first permanent memorial to a unique secret weapon of World War II.

This historic fort spans more the 300 years.

Don't get it twisted: This is the oldest pretzel bakery in the United States.

The oldest farmer's market in America is so ancient it was approved by the King of England.

Classy up your Big Mac with bow-tied servers and chandeliers at the world's fanciest McDonald's.

The highest point in Tennessee, Clingmans Dome bears witness to the ravages of one type of insect.

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

An interesting decoration on this historic site, this weathervane comes with as many legends as it does questions.

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

This monument on Breed's Hill proves that one of the most famous battles of the Revolutionary War is misnamed.

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.

A Gothic-inspired fish market is Gothenburg's best place to find loaves and fishes.

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.

A museum and shop on Bourbon Street located in the French Quarter.

In the hometown of the Catholic saint and Nobel Peace Prize winner, a memorial dedicated to her legacy.

This fortress dates back to the 6th century and is also the site of a controversial abandoned restoration project.

These historic defenses ensured the city within would survive hundreds of years of occupations, sieges, and invasions.

The sweetest graveyard in the world is filled with headstones for dearly de-pinted ice cream flavors.

An eerie diorama that captures the majestic nature of a few prehistoric-looking beasts.