The Siege of Lachish
Sennacherib was particularly proud of his victory. He even decorated the walls of a room in his huge palace at Nineveh with scenes of the siege and capture of Lachish.
Less than 100 years later, in 612 B.C., the Assyrian empire collapsed. Sennacherib's palace was burnt down. You can see where the burning roof fell and damaged the reliefs.