The Tomb of Khải Định , officially Ứng Mausoleum, is located in Chau Chu mountain near Hue in Vietnam. It was built for Khai Dinh, the twelfth Emperor of the Nguyen dynasty. It was built from 1920 to 1931 taking 11 years to complete. The tomb is a blend of Western and Eastern architecture. It is located on a steep hill outside of the capital city of Huế.