Dozens of kilometers southeast to the Imperial Palace,
there is a huge altar temple, the Temple of Heaven. The
total acreage of the Temple of Heaven is 2700 thousand
square meters, it is four times greater than the Imperial
Palace. In China, the emperor is called the "Godson",
that is why the size of the residence of son dares not
to exceed that of God.
The Temple of Heaven is located on the axle wire, the
most southern wall is in square shape, standing for the
Earth, while most northern wall is in a semi-circle shape,
standing for heaven; this design comes form the concept
of "heaven round earth square".
The famous Qinian Palace is at the most northern part,
this is the grandest, most brilliant and most dazzling
architecture, and people used to believe that here, is
nearest to heaven.
The Temple of Heaven is also famous for its marvelous
echo. If you stand in the center of Huanqiu Altar and
shout, you will hear a strong and clear echo from the
deep part of the earth, or from the heaven, thus people
give it a mysterious name, "Heaven Heart Rock".