Answer
Sennacherib focused on renovating and expanding the city of Nineveh, the capital of Assyria, in the 7th century BC. He built a new palace, a temple dedicated to the god Nabu, and a new city wall. The city was also connected to the river Tigris by a canal. Sennacherib's renovations and expansions made Nineveh one of the most important cities in the world at the time.