Ferris lives at this house which, unusually for John Hughes, is not in Chicago but in Long Beach, CA. It's also on the same street that Donnie from Donnie Darko (2001) lives.
The Save Ferris Water Tower. South of Cherry Lane and North of Shermer Lane
Where Sloane waits outside with Mr. Rooney who's thinking her parents are picking her up due to her Grandma's death.
Cameron Frye's House, used for exterior shots, and the garage was used to crash the Ferrari.