Answer:
High relief is a style commonly used in Ancient Greek architectural sculpture, especially during the Classical Period, whereby the figures are carved out of their backgrounds to half or more of their depth. This technique proved very effective in giving human figures and animals the appearance of movement out of the marble, or other sculptural material. The sculptures of the Parthenon are a good example of high relief sculpture.
Next Question: What is the Labyrinth?
Previous Question: What is the Hellenistic Period?