“A dream without action will never be great.” Costner’s grand plan finally started construction in July 1978 and officially opened on December 7, 1979. Sun City caused a sensation after its opening. Tourists from all over the world flocked there, and the 340 rooms of the Sun City Hotel were simply not enough to cope with it. As Sun City's reputation gradually grew, the number of tourists to Sun City also grew at an alarming rate every year. Under such circumstances, in 1990, Costner began to build the legendary city within the city, also known as The Lost City. .

There is an ancient legend about the Lost City. According to the legend, before the West had civilization, the nomads from Central Africa built an unprecedentedly great city in the "Valley of the Sun". The city was amazing with its beautiful scenery and beautiful scenery. However, a devastating earthquake later caused the city to be covered in lava and became the legendary Lost City. In order to realize this dream, Costner did not hesitate to spend 830 million rand (approximately more than 410 million ringgit) to transplant 1.2 million various trees and plants to build an artificial rainforest and swamp. It took 28 months to finally bring the legendary lost city back to the world in December 1992.

When talking about the Lost City, we have to introduce the six-star Palace Hotel (The Palace Hotel), which is listed as one of the top 10 hotels in the world and has 338 rooms. The Palace Hotel is the fourth hotel in Sun City. It is also the most luxurious and expensive hotel. It is better to say it is a hotel than an African castle. The architectural design and sculptures on the hotel's exterior are full of African rough and psychedelic styles. Wild animals are used as themes in many places. The reliefs on the furniture in the guest rooms are all in the shape of various animals. Showing the unique style of Africa, from small items such as stationery and pencils, there is nothing that does not fully reflect the African style.

After the opening of the Lost City in 1992, the city's bizarre and interesting entertainment world has become one of the goals of tourists from all over the world to visit Suncity. It is said that more than 3 million tourists visit Sun City every year, and the number continues to increase. Every scene in the Lost City completely imitates the appearance of the legendary ancient city. Broken and collapsed stone pillars and giant doors can be seen everywhere. It is easy for people to mistakenly fall into the time tunnel and step into ancient times.