Among the lots put up for auction by museums and heritage attractions are some great experiences - including driving a tank or a veteran car; sitting in the cockpit of Concorde; sailing up the Thames on an historic Shallop (with liveried attendants); having Eureka! to yourself; exploring behind the scenes and meeting curators and conservators of extraordinary collections – from Royal dress at Kensington Palace to lawnmowers and trams. Museums across the UK will benefit from the funds raised.