The second place we visited that day was the Temple of Heaven. I liked this much more than the Forbidden City - it actually has trees! The Forbidden City didn't have trees except in one small garden area, because they didn't want there to be opportunities for assassins to hide behind trees. It makes the complex rather blank and scorching when it's hot. The Temple of Heaven, though, has trees all over, and it's quite large. There's a lot to explore. I've heard that in the mornings lots of people are there, doing tai chi and playing instruments, kind of like Zizhuyuan, near us.