Brochs are only found in Scotland. Dating back to The Iron Age; they are Drystone hollow walled structures.
Find out more about Brochs and The Strathyre Broch project from John Hemingways blog here http://glenvarlochs.blogspot.co.uk .
Also have a look at Glenvarloch self catering accommodation in Strathyre between Perthshire and The Trossachs.
LETI: John Hemingway joined LETI at the beginning of 2012. He offers self catering holidays in Strathyre for 6 people in an architect designed open plan house not far from the Strathyre Broch. The holiday home is open in all seasons, conveniently situated adjacent to Sustrans National Cycle route 7 and The Rob Roy Way which is part of Scotlands GORE-TEX national trail.