London’s Westminster Abbey, one of the UK’s most visited tourist attractions, is undergoing work on a new museum, marking the first addition to the visitor experience at the historic site since 1745. The £23m (US$32m, €26m) museum, named the Queen’s Diamond Jubilee Galleries, will be located inside the triforium – a loft-like space above the arches of the nave of a church – some 70ft (21m) above the Abbey's floor.