This shop for all your super spy needs hides an educational secret.

This whimsical Oz-themed park had a wonderful impact on the surrounding neighborhood.

A toweringly silly piece of modern art has been delighting locals since the 1980s.

Enter the Forest of the Elves.

20,000 pieces in a Frank Gehry-designed building.

Funhouse of found art and participatory sculpture.

A huge musical sculpture and other art installations on the National Oceanic and Atmospheric Administration grounds.

Home to items never before seen by the public.

Mussolini gave Cincinnati a bronze statue of Romulus and Remus suckling at a wolf's teats.

This humble star-gazing center touts itself as the "Birthplace of American Astronomy."

An art deco ice cream shop covered in vintage tiles.

An abandoned relic of the city's failed experiment with below ground transit.

Where beautiful signs live on forever.

An underwater city for the dead.

Site of a former hidden treehouse in New Orleans.

The world-record holder for the longest bridge stretching continuously over water.

An abandoned warehouse turned art sanctuary in New Orleans.

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

The curiosities and wonders of pharmacy in a delightful historic building.

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.

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

Berthed at the Charlestown Navy Yard in Boston, "Old Ironsides" is the oldest commissioned warship still afloat.