Skara Brae is the remains of a small village from 3100BC, zoom in and look around to see people's houses, and the passage-ways between them. We know virtually nothing about these people and their culture but for the tantalising glimpse of what they left behind.
The abandoned remains were first unearthed in 1850 by a huge storm, then in 1925 a further storm damaged the remains and unearthed even more structures. At this time a protective sea wall was constructed and the whole site properly excavated and stabilised by archeologists.
Skara Brae is part of "Neolithic Orkney" a number of ancient monuments designated a World Heritage Site.