Crowley and his crew searched Los Angeles for almost seventy locations that resembled fin de siècle London. Jonathan Nolan visited Colorado Springs to research Nikola Tesla and based the electric bulb scene on actual experiments conducted by Tesla. Nathan Crowley helped design the scene for Tesla's invention; It was shot in the parking lot of the Mount Wilson Observatory. Influenced by a "Victorian modernist aesthetic," Crowley chose four locations in the Broadway theater district in downtown Los Angeles for the film's stage magic performances: the Los Angeles Theatre, the Palace Theatre, the Los Angeles Belasco, and the Tower Theatre. Crowley also turned a portion of the Universal back lot into Victorian London. Osgood Castle in Colorado was also used as a location.