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

This palatial botanical garden is home to one of the largest pipe organs ever installed in a private residence, and a piece of Wood's cycad.

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

Tour the dark and beloved poet's former cobwebbed basement, which may have inspired "The Black Cat."

A layered tribute to the work of mosaicist Isaiah Zagar.

A toxic ghost town sitting atop a massive coal fire.

Oldest synagogue in the United States.

A 60-room castle constructed by a horse-racing heir.

Mysterious stone tower featured in many alternative histories of the New World.

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

This Rhode Island mansion was a stand-in for the exteriors of Collinwood in the original "Dark Shadows" series.

The hotel where Martin Luther King Jr. was shot is now a museum dedicated to his work.

The uniquely-designed winter home and sculpture studio of Anna and Archer Huntington.

I-95's Tijuana-style celebration of kitsch at the Carolina border.

This church built atop a gas station promises to "equip you for the next stage in your life’s journey."

The romance of early commercial flight still fills this Art Deco destination.

Scenic mount trashmore, Virginia Beach's most curious waterfront still has a couple of secrets.

This isn't your average roadway—it's actually a National Park and a transportation pioneer.

This lovely picnic spot featuring thunderous jet landings is an aircraft spotter’s dream.

Soldiers were buried next to Lee's house in the center of Arlington Cemetery to dissuade the general from reclaiming his property after the war.

Forget Hollywood, one of the biggest stars in the world can be found in Roanoke, Virginia.

This stately building in Alexandria, Virginia was built by Freemasons to honor one of their most famous members.

At 207 feet, one of the world's longest continuous escalators.

The bank that helped fund the Mexican-American War and the purchase of Alaska met its downfall after helping Augusto Pinochet launder money.