The temple complex was constructed from 1406 to 1420 during the reign of the Yongle Emperor, who was also responsible for the construction of the Forbidden City in Beijing. The complex was extended and renamed Temple of Heaven during the reign of the Jiajing Emperor in the 16th century. The Jiajing Emperor also built three other prominent temples in Beijing, the Temple of Sun (日壇)in the east, the Temple of Earth (地壇)in the north, and the Temple of Moon (月壇)in the west . The Temple of Heaven was renovated in the 18th century under the Qianlong Emperor. Due to the deterioration of state budget, this became the last large-scale renovation of the temple complex in the imperial time.

Very cool, thanks. I didn't know that they had Lego in the year 1406.