The secret city built by the Manhattan Project.

FDR's Art Deco hospital tower was hopelessly inefficient.

Dogs, cats, horses, monkeys, frogs, and fish are laid to rest at the second-oldest pet cemetery in the U.S.

The tallest The Church of Jesus Christ of Latter-day Saints temple in the world soars above the Beltway.

The longest escalator in the Western Hemisphere takes over three minutes to ride down.

Once home to seven different roller coasters, Glen Echo has undergone many transformations since its founding in 1891.

The land is home to swimming ponies and a legendary 18th-century treasure.

A museum dedicated to exhibiting remarkable outsider art.

Eighteen miniature death-scene dioramas.

An 18th-century home taken over by antique automatons and musical machines (Closed).

A typical "Old South" manor, once owned by author Anne Rice, served as the setting for several of her witchcraft sagas.

For 150 years one family has been producing the iconic hot sauce on a bayou island made of salt.

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

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

This historic "City of the Dead" lies prominently in the center of New Orleans' famous Garden District.

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

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

A 200-year-old bar in the historic French Quarter refuses to give up its place in history, nor its role in securing ours.

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

A snapshot of the city's fascinating voodoo culture.

World's largest collection of Coke-related items not held by the Coca-Cola company.

A wonderful collection of all things Oz is nestled in the heart of Kansas.

With 8,000 pipes this giant instrument is the most versatile theatre pipe organ ever built.

The twin towers in this Chicago fountain use 50 foot tall video screens to spit on people.