Gaogai is a city site, about 3 hours drive from Siem Reap city chartered. Since it has not been fully opened up to my tourist attraction, the site is basically hidden in the forest. The most worth seeing of the high cover is a 7-story pyramid of more than 30 meters high. Although some damage, the overall structure is basically complete. According to our chartered driver, there are about 6 or 70 architectural sites in the high-rise site, which will be gradually renovated and developed soon, and is now listed on the UNESCO provisional World Heritage List.