Visit Imperial Citadel, first built by King Gia Long in 1805. Here you will visit Ngo Mon Gate, Thai Hoa Palace, The Mieu Temple, and the Nine Dynastic Urns and Khai Dinh tomb. It is the result of the interminglement of many architectural trends: European and Asian, as well as ancient and modern. The location of Khai Dinh Tomb was carefully calculated. Accordingly, the position of hilly mountains, streams around the tomb were relative with the geographical feng shui elements, creating majestic and breathtaking natural scenery. Architecture of the Tomb of Khai Dinh was extremely strange, far different from structures of previous predecessor Emperors' tombs.