A turn-of-the-century architectural marvel built on healing mineral springs and salt licks.

A treasure trove of rare and exquisitely detailed antiques

This "second" cemetery represents New Orleans' attempt to keep cholera at bay.

A bit of retro transportation flair preserved in the world's largest department store.

This Wall Street bar was once a hub of revolutionary activity where Washington famously bid farewell to his troops.

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

Where monkeys run wild and the humans are caged.

This sprawling bookstore spans four floors and has more than a million books in stock.

This sculpture by artist Fritz Keonig survived the 9/11 attacks and now stands as a monument to the victims.

This bar named after the world's first mixed cocktail was home to one of New Orleans' most notorious politicians.

Moonbows over Kentucky.

Huge masonic hall in Philadelphia with lavishly themed rooms.

The largest cemetery in the American Southeast is a hidden gem near the heart of Atlanta.

An abandoned theme park with a strange and tumultuous past.

Made of giant chains and hung with shackles, this iron cross honors those unknowns who perished under American slavery.

An underground magnet for ever-changing street art.

A curious collection of oddities including a lock of Alexander Hamilton's hair and Harry Houdini's ouija board.

This replica of the Greek structure is in the heart of Nashville.

These Pre-Columbian petroglyphs contain representations of birds, deer, hunters, and even some early Native flute players.

A popular European tradition makes its way to the states on one of America's most famous bridges.

A tribute to Ponce de Leon's supposed quest for eternal youth.

Macabre headstones carved with winged skulls, dancing skeletons, and pithy reminders of impending death.

A monument in Washington D.C. marks the spot from which all other roads were supposed to stem.

Storyville was New Orleans' historic red light district and hotbed of jazz music, sometimes referred to simply as "The District."