Brother and sister Chris Collins and Liz Chambers are considering a new strategy after their rare Beatles album failed to sell at a Sussex auction.

BBC: Beatles for sale: Assessing the value of band memorabilia

The Chris Hoy Velodrome in Glasgow, the Falkirk Wheel, Glasgow City Chambers, the Scottish Parliament and the McCaig Tower in Oban were among Scottish landmarks that were switched off.

BBC: Earth Hour: Thousands of Scots switch off lights