Temple of Heaven
The Temple of Heaven is the largest group of architecture ever built dedicated to heaven. Heaven, for the Chinese, refers to the universe or nature.
Shown here is the entrance into the Circular Mound Altar. It was built in 1530. The initial structure was built with blue glazed tiles. The Altar was later changed to the current white stone circular mound in 1749, which you can see behind the gates in this photo.
Every winter solstice, the Emperor would pray for a good harvest.