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

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

Long-abandoned trolley tunnels just a mile away from the White House are turning into an art space.

With over 100 jam-packed rooms to explore plus elaborate tea services and events, the Mansion on O Street is a hidden treasure.

Sacks of potatoes, made of cast stone, mark where the iconic potato sheds once stood along the river.

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

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

This upscale streetwear store is hidden behind a fake Snapple machine in the back of a deli.

Where dioramas can follow you home.

The bad-ass ride of a soul legend, housed in one of the world's few soul museums.

This Memphis recording studio launched the careers of Jerry Lee Lewis, Johnny Cash, and Elvis Presley.

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

A private museum dedicated to preserving the heritage of Mardi Gras' most beloved underdog parades, open by appointment.

A small park on Bourbon Street features life-size bronze statues of New Orleans musicians.

The only rotating bar in New Orleans has been slowly spinning since 1949.

The greatest collection of New Orleans masking and processional traditions covering everything from Baby Dolls to Skull and Bone gangs.

This float factory takes the mask off of Mardi Gras and lets visitors see where the magic happens.

A 200-year-old building in the French Quarter that was to be Napoleon's home in the New World.

In 2010, Nicolas Cage purchased two plots in this cemetery using one to construct this strange pyramid mausoleum.

The second oldest continuously operating bar in Louisiana.

The oldest cemetery in New Orleans, resting peacefully for over 200 years now.

The final resting place of New Orleans' most famous voodoo priestess.

The only Bahá'í house of worship in North America and one of only a handful worldwide.

Pizza with a side of fine art.