The Alter of Heaven is Balanced in true chinese Yin Yang fashion by the Alter of earth which is located in Ditan Park near the Lama Temple. It is not as impressive as A of H with the often miss-named Temple of Heaven (Temple of Good Havest). The rooves at the A of H are blue which is peculiar to this structure only in BJ. An exception is the robing room where the emporer changed before worshiping. which is yellow (unfortunately restored by painting it bright yellow this year)