complete with a total of 48 bastions with gold tipped pyatthats or spires at regular intervals of 169 m (555 ft) and surrounded by a moat 64 m (210 ft) wide, 4.5 m (15 ft) deep. The walls, built with the common Burmese bricks set in mud mortar, are 3 m (10 ft) thick at the base and 1.47 m (4 ft 10 in) at the top; 6.86 m (22.5 ft) in height, excluding the merlons, and 8.23 m (27 ft) with the merlons. The embrasures are 0.84 m (2 ft 9 in) in width. To give access to the battlements in cases of alert and at the same time to strengthen the wall, an earthen rampart on a moderately inclined plane has been thrown up behind it. Its summit forms a platform 1.83 m (2 ft) wide, paved with bricks and running all along the walls behind the crenelles. Gates On each face of the walls are three gateways placed at equal distances (508 m; 1666.5 ft) one from the other and from the corners. Each of the twelve gates, represented by its own zodiac sign, is 4.8 m (15.75 ft) wide and flanked on both sides by one-half of a bastion which supports the post of a many-tiered pavilion or pyatthat that rises over the gateway. The pyatthats over middle gates, used by the royalty, have seven tiers while those on the rest have only five. Of these twelve gates, the main one was the central gate in the east wall, facing the Great Hall of Audience and the Lion Throne in the palace. The bastion projects 7 m (23 ft) from the face of the wall, and is 10.36 m (34) ft in breadth on each side of the gateway. It is ornamented on the outside, with simple mouldings and simple plaster carvings, but on the inner face which forms the prolongation of the gateway itself, it rises abruptly without any plinth or mouldings, from the ground level. Two flights of steps, one on each side of the gateway, provide access to the top of the bastion and the wall. Each gateway was equipped with a thick wooden door of two leaves, (which were removed after the British annexation). Masonry screens The entrance to each gateway is protected by a masonry screen or barbican erected a few metres away from the moat in front of the entrance.