Dennis,
The National Trust for Scotland has a lot of beautiful places to visit. You can look them over on their website when your planning your trip. Back in 1985 I was over there for the summer and saw Culzean castle, Inverewe Gardens and the Culloden battlefield. Culzean castle was where Eisenhower planned the D-day operation of WWII, that's where his office/war room was located.
http://www.nts.org.uk/Home/Have a wonderful vacation.