NOUN (2)

1. joint capital (with Riyadh) of Saudi Arabia; located in western Saudi Arabia; as the birthplace of Muhammad it is the holiest city of Islam;

2. a place that attracts many visitors;
- Example: "New York is a mecca for young artists"

WordNet (r) 3.0 (2006):

Mecca
    n 1: joint capital (with Riyadh) of Saudi Arabia; located in
         western Saudi Arabia; as the birthplace of Muhammad it is
         the holiest city of Islam
    2: a place that attracts many visitors; "New York is a mecca for
       young artists"