Travelers are voting Royal Palace and Independence Monument as the best historical attractions in Siem Reap. There is 2 historical attractions in Kampong Cham a city just 149 km from Siem Reap. The most popular of these is Royal Palace in Kampong Cham. You can find 3 Historical Attraction in the country of Cambodia and Royal Palace is our members favorite Historical Attraction in all of Cambodia. Want more? Check out our map of historical attractions in Siem Reap.