Broch of Ages!

The Broch of Mousa has stood on the island of Mousa for over 2500 years.

It still has it's rooms, cupboards, shelves and even an internal staircase leading to the roof.

It doesn't have wifi, satellite telly or a mobile phone signal.

Now who's going to tell me that our Neolithic ancestors weren't smart?

Extra 1 - Neolithic built in wardrobes.
Extra 2 - roof with a view, good for checking the weather.