Mission San Juan Bautista, CA. The bell tower where a mysterious blonde took the plunge and led her smitten suitor to vertiginous mental ruin was actually a matte painting, otherwise it's exactly as it was.
The livery stables, where the protagonist would say
"...And it's a all real...
Not merely as it was a hundred years
ago. As it was a year ago, or six
months ago, whenever you were here
to see it...."