flight of stairs by which access is obtained to the top of the terrace; these narrow steps are enclosed between two brick walls, ornamented with copings in three tiers; the lower end of each coping is terminated by a large and graceful volute; this kind of ornamental stairs, with minor differences in details, may be seen all over Burma, either in brick or wood. The walls and roofs of the relic-chamber are adorned with graceful plaster carvings. Although the building is called the Tooth Relic Tower, there never was any tooth-relic enshrined in it. The tower was built simply because it was the tradition to have such a tower at the royal city, a tradition from the time of King Bayinnaung. Hluttaw The Hluttaw (, ) or the Supreme Court was where the official business of the court was conducted. The Lion Throne (Sihasana) was the chief throne of eight in the palace. The hall consists of two three-roofed wooden structures, richly decorated with figures and flowers, and supported by massive teak pillars painted red at the bottom and gilded above. Therein was a Lion-Throne (Sihasana) for the king. Royal mausoleums Due north from the Clock Tower is a cluster of mausoleums erected to the memory of some members of the royal family. The most important historically is that of King Mindon, who died in 1878. It was originally a brick pyatthat, plastered over and whitewashed, erected by King Thibaw to the memory of his father, as soon as the grave had been built. The Sawbwa of Yawnghwe, decorated the king's tomb with glass mosaic. It is a square structure surmounted by a septuple roof terminating as usual in a hti. Other mausoleums include those of three wives of Mindon: Chief Queen; Queen Laungshe, mother of King Thibaw; Queen Hsinbyumashin, mother of Queen Supayalat. Royal Mint The Royal Mint is located a few hundred metres to the northeast of the mausoleums. It was where the first Burmese coin was minted in 1865. After the British annexation, the mint was used as bakery for the troops for some years. It was one of few buildings in the palace that survived allied bombing during World War II. Watch tower The palace grounds are dominated by the 24 m (78 ft) tall Nanmyintsaung () or Watch Tower, topped by a seven tiered pyatthat. It was the spot from which to view the city.