South Pasadena, CA
After the DeLorean refuses to start, Marty is forced to foot it into town. But, once again, I am going to save the town square for the climax of the film and move on to Lorraine's house. (If you're really that impatient about seeing the town square, you can, of course, always use the menu at the top or bottom of the page. But, then I reserve the right to call you Skippy McAnxious. Not that I will, but I reserve that right.)
Following his first encounter with Biff, Marty chases down his father George, who is escaping on a bicycle. When Marty finally catches up to him, he discovers that his own father is, or was, a Peeping Tom. George has climbed up a tree and is spying on his wife-to-be through her bedroom window.
And you can find that bedroom window and the house it's attached to on Bushnell Avenue in South Pasadena. In fact, you can knock off more than one Back to the Future location while you're there. Along with Lorraine's house (1727), you can find George's house just a few doors down (1711), as well as Biff's house from Part II (1809), although it's a little hard to recognize without all the crap on the front lawn. Jennifer's house from Part II and Part III was reported to be on the same block, but the address I had was incorrect and after three walks up and down the block, I concluded it wasn't there at all. (If you happen to know where it is, please let me know.)
It's no surprise that Zemeckis made such good use of this particular block. Bushnell Avenue has been quite popular with film crews for years and interestingly enough, it's where Michael J. Fox's house stood in Teen Wolf.
And by the way, if you do drive out to Bushnell, please, no voyeurism.
Next: Doc's Mansion