A walk-in working camera obscura produces 360-degree live images of the San Francisco coast.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

This shop specializes in oddities and Victorian-inspired wonders.

Bring your own cardboard to the slippery slopes of concrete hidden in a neighborhood park.

An artsy hidden staircase leads to breathtaking views of San Francisco.

A huge musical instrument played by the ocean.

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

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

By day this New Orleans square is for pedestrians, but by night it is a kingdom of kittens.

A collection of oddities including Dr. Kevorkian's suicide device, the Thanatron.

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

This knobby, drooping New Orleans oak is a favorite place both for climbing and for meeting giraffes.

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 former home of the second Voodoo Queen of New Orleans.

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

This symbolic piece of New Orleans architecture is also home to a few ghastly stories.

The second oldest continuously operating bar in Louisiana.

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.

It might not be the prettiest pyramid in Egypt, but it may be the muddiest.

This ancient structure is widely thought to be the oldest intact pyramid in the world.

One of its engravings is believed to be among the first representations of medical and surgical instruments.

The deadliest diving spot in the world is also a stunning geological marvel.