Edinburgh - the castle, the Royal Mile, John Knox House, Holyrood Palace, Princess Street, Princess Street Gardens, Old Parliemant House, St Giles Cathedral, St Andrews Cathedral, the New Town, The Grassmarket, the Edinburgh Festival and Fringe.
Glasgow - PS Waverley, Glasgow School of Art, University of Glasgow, Kelvingrove Art Gallery, Kelvingrove Park, Clyde Walkway, more shops than you can shake a box of sticks at!
Aberdeen - King's College, Marischal College
Dundee - RSS Discovery, HMS Unicorn, Dudhope Castle, Broughty Castle, Claypotts Castle, Wishart Arch, The Howff, City Steeple, 15th Century House.
Southern Uplands - Wigtown Book Town, Kirkcubright Artists Town
Borders - Sweetheart Abbey, Kelso Abbey
Central Scotland - Cumbernauld Town Centre (probably the worst architecture in the world), The Falkirk Wheel
Fife - St Andrews, Culross, Crail, Dunfermline Abbey, Deep Sea World
Stirlingshire - Stirling Castle, The Wallace Monument
Perthshire - Pitlochry, Blair Castle, Killiecrankie Leap, gorgeous scenery
Grampian - loads and loads of castles, Braemar
Highlands - Glencoe, Dunrobin Castle, Grey Cairns of Camster, Stacks of Duncansby
Argyll - Oban, Iona, ferries to everywhere