Queen Mary's dollhouse, the largest and most famous in the world, turns 100 (and Queen Camilla renews her library) Built between 1921 and 1924 as a gift from the nation to Mary of Teck, wife of George V, this replica of an Edwardian mansion has electricity, lifts and even running water. It includes the royal rooms of the king and queen, the main living room and dining room, kitchens, gardens, cellar, garages and even, in the attic area, the domestic service rooms.