The Cambodian circus (called Phare) was amazing. It's run by a non profit who provides schooling (including an arts curriculum) to 1,400 students from rural areas of Cambodia. The best arts/gymnastics students are selected for the professional circus after graduating and they put on the shows in Siem Reap and Battambong.
The one currently running is about a girl overcoming life under the Khmer Rouge. It was a really moving story, but also crazy impressive in the gymnastics fears. I was really impressed!