When I was here 10 years ago, photography was strictly prohibited. You could get in trouble if they caught you doing that. Now, photography without flash and tripod is allowed, thank you. The likelihood of flash usage of damaging the terracotta warriors is extremely slim but I understand that flash is prohibited, but tripod? Oh well, I had to rely on the Image Stabilizer of my lens to take the pictures using mostly wide open aperture. The museum has expanded as more pits and artifacts were discovered.