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’m sure there are older ones, but this one looks like someone left a few weeks ago even though it’s from the 1890’s. You can walk into it after a medium hike. There’s still soot in the fireplace.
https://californiathroughmylens.com/eagle-cliff-mine/
The really old stuff from the native Americans might be around but I’m not familiar with it.