 Many rivers and canals crisscross its cobbled streets, and breathtaking stone mansions are common.The city lacks the squalor of King's Landing, which usurped its position as the preeminent city of Westeros.The largest structure in the city, and the tallest structure in Westeros, is the Hightower, a massive stepped lighthouse which extends some into the sky and is topped by a huge beacon which can be seen for many miles out to sea.