Many of the sculptures now adorning the Summer Garden date back to the early 18th century. In the 19th century, the intended arrangement of the decorative sculptures in the Summer Garden was forgotten, quite a few of the sculptures were no longer extant, and those remaining were moved from place to place, thus destroying the original design. In late 20th century, all sculptures were rearranged and today they stand in accordance with the aesthetic ideas charactertistic of the beginning of the 18th century.

Allegorical sculpture refers to sculptures that symbolize and particularly personify abstract ideas as in allegory. Common in the western world, for example, are statues of Lady Justice representing justice, traditionally holding scales and a sword, and the statues of Prudence, representing Truth by holding a mirror and squeezing a serpent.

Here is the allegorical reprenstation of architecture: a woman holding the plans and drawings of a building, looking towards the sky – where the architect's work elevates itself.