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

Shop for books in the New Orleans house where William Faulkner once lived.

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

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

There aren't too many operational funiculars around, but Pittsburgh has two!

This permanent exhibition celebrates the finest of our heartless automatons both real and fictional.

The world's first permanently occupied mountain-top observatory continues to report on the stars.

A Mexico City subway station boasts a hidden museum, complete with a working radio booth.

A shining treasure trove of fine Mexican silver dating back to the 15th century.

A fabulously bizarre surrealist sculpture by the late artist Leonora Carrington.

At a museum of everyday objects, it is the act of collecting that is really on display.

Meant to be one of the most extravagant hotels in the world, now an eerie, abandoned architectural gem in Mexico City.

La Monte Young and Marian Zazeela's "Dream House" will immerse you in an ever changing world of sound and light.

A terrific purveyor of natural history objects and curios.

A beautiful and abandoned New York subway station from 1904, complete with chandelier.

The one-time watch house for incoming ships at the Golden Gate now stands abandoned and hidden in trees.

San Francisco's newly reopened hands-on science museum.

The seawater playground of gilded-era San Francisco burned to the ground in 1966.

Tiki luxury on Nob Hill.

Relics of the 1894 Midwinter Exposition continue to delight visitors today.

Carnivorous plants, medieval aphrodisiacs, and the largest original wood structure glass conservatory in the western hemisphere.

This weird abode has inspired everything from the "House On Haunted Hil" to a robot hunter's pad.

High on a hill overlooking Los Angeles lives a world famous, high power conical Tesla Coil.

The legendary building that needed ghostly approval before being built.