The presence of the ka'ba attracted pilgrims to what city?

It attracted pilgrims to the city of Mecca.

Kaʿbah, also spelled Kaaba, is a small shrine located near the center of the Great Mosque in Mecca and considered by Muslims to be the most sacred. this include Muslims everywhere in the globe. The Kaaba is approximately forty-five feet high and thirty-three by fifty feet wide and is draped with a woven black cloth embellished with Quranic verses.