To those from the Western hemisphere, it’s always fascinating to hear that some homes and businesses from the times of the Greek philosophers still have inhabitants, and then you remember that the Western hemisphere is itself not without its own examples, for example some Mexican villages still have temples from the times of the Mayans.
I used to live in Regensburg, one of the northernmost Roman garrisons. So, the oldest remaining building (stone wall) is almost 2000 years old.