大唐西域記 2.5: 5. Towns and Buildings.

2.5

The towns and villages have inner gates; the walls are wide and high; the streets and lanes are tortuous, and the roads winding. The thoroughfares are dirty and the stalls arranged on both sides of the road with appropriate signs. Butchers, fishers, dancers, executioners, and scavengers, and so on, have their abodes without the city. In coming and going these persons are bound to keep on the left side of the road till they arrive at their homes. Their houses are surrounded by low walls, and form the suburbs. The earth being soft and muddy, the walls of the towns are mostly built of brick or tiles. The towers on the walls are constructed of wood or bamboo ; the houses have balconies and belvederes, which are made of wood, with a coating of lime or mortar, and covered with tiles. The different buildings have the same form as those in China : rushes, or dry branches, or tiles, or boards are used for covering them. The walls are covered with lime and mud, mixed with cow's dung for purity. At different seasons they scatter flowers about. Such are some of their different customs.
The sanghârâmas are constructed with extraordinary skill. A three-storied tower is erected at each of the four angles. The beams and the projecting heads are carved with great skill in different shapes. The doors, windows, and the low walls are painted profusely; the monks' cells are ornamental on the inside and plain on the outside. In the very middle of the building is the hall, high and wide. There are various storeyed chambers and turrets of different height and shape, without any fixed rule. The doors open towards the east; the royal throne also faces the east.