求翻译：该建筑包括约1,100个独立房间、100座楼梯和4.8公里长的走廊。尽管今天的宫殿基本上由19世纪重修而来，但依然保留了初建时的许多历史遗迹，如威斯敏斯特厅（可追溯至1097年），今天用作重大的公共庆典仪式，如国葬前的陈列等　是什么意思？

The building includes approximately 1,100 independent rooms, 100 staircases and 4.8 km long corridor. Although the palace today is basically rebuilt from the 19th century, but still retains the first built many of the historical sites, such as Westminster Hall (dating back to 1097), today used as a

The building consists of approximately 100 independent rooms, 100 staircases, block and 4.8 kilometers of the corridor. Despite the fact that today the palace is basically a 19th-century renovation, but still retains the initial many historic sites, such as Westminster Hall (can be traced back to 10

This building including approximately 1,100 independent rooms, 100 staircases and 4.8 kilometer long corridor.Although today palace basically repairs by the 19th century comes, when still retained initially constructs many historical vestige, like the Westminster hall (might trace to 1097), today se

The building includes approximately 1,100 individual rooms, 100 staircases and 4.8 km long corridor.　Today comes largely from 19th century rebuilt the Palace, but still when I first built is preserved many historical sites, such as at the Hall of wisdom-sensitive (dating back to 1097), today used as

The building includes approximately 1,100 individual rooms, 100 staircases and 4.8 km long corridor.　Today comes largely from 19th century rebuilt the Palace, but still when I first built is preserved many historical sites, such as at the Hall of wisdom-sensitive (dating back to 1097), today used as