1. Khai Dinh Tomb is a mausoleum located in the city of Hue, Vietnam. It was built as the final resting place for Emperor Khai Dinh, who ruled Vietnam from 1916 to 1925.

The tomb is known for its unique blend of traditional Vietnamese and modern European architectural styles. It is often considered one of the most elaborate and intricately designed tombs in Hue. The construction of the tomb took 11 years to complete, from 1920 to 1931.

The interior of the tomb is adorned with exquisite mosaics, ornate frescoes, and sculptures of dragons and guardian figures. It showcases the opulent and flamboyant style of Khai Dinh, reflecting the influence of French colonialism on Vietnamese royal architecture.

One interesting fact about Khai Dinh Tomb is that it is built on a hillside, making it quite an uphill climb to reach the entrance. However, the climb is worth it as it offers stunning views of the surrounding landscape.

2. The working time of Khai Dinh Tomb is from 7:00 AM to 5:30 PM daily. The tomb does not have a phone number available for public use.

3. The ticket price for Khai Dinh Tomb is 150,000 VND (approximately $6.50 USD) per person. This fee includes access to the tomb and the surrounding gardens.

To reach Khai Dinh Tomb, you can hire a taxi or motorbike from the city center of Hue. The tomb is located about 10 km south of the city and can be reached in about 30 minutes by car. There is also a shuttle bus available for tourists that takes visitors to various tombs in the Hue area, including Khai Dinh Tomb.