This is another sim that depicts a real place... San Diego, California, and I have searched on the web, and the representations are good! Some of the historical places are occupied by sl stores, but it does not detract too much from what they are trying to achieve here.
The Old Mission, which was founded in 1769 appears fairly accurate, perhaps even to the historical plaque! I cannot vouch for the accuracy of everything, but the part of the sim dedicated to the old town was delightful to visit.
As usual, I leave a few things out, it will be for you to discover.
The sim is mature.