SELECT T1.city FROM city AS T1 JOIN hosting_city AS T2 ON T1.city_id  =  T2.host_city GROUP BY T2.host_city ORDER BY count(*) DESC LIMIT 1
SELECT T1.city FROM city AS T1 JOIN hosting_city AS T2 ON T1.city_id  =  T2.host_city GROUP BY T2.host_city ORDER BY count(*) DESC LIMIT 1 <table_name> : city col : City_ID | City | Hanzi | Hanyu_Pinyin | Regional_Population | GDP row 1 : 1 | Shanghai | ä¸æµ· | ShÃ nghÇi | 23019148 | 1919.57 row 2 : 2 | Nanjing ( Jiangsu ) | åäº¬ | NÃ¡njÄ«ng | 8004680 | 614.55 row 3 : 3 | Hangzhou ( Zhejiang ) | æ­å· | HÃ¡ngzhÅu | 8700400 | 701.18 row 4 : 4 | Suzhou ( Jiangsu ) | èå·/ èå· | SÅ«zhÅu | 10465994 | 1071.7 row 5 : 5 | Ningbo ( Zhejiang ) | å®æ³¢/ å¯§æ³¢ | NÃ­ngbÅ | 7605689 | 601.05 row 6 : 6 | Wuxi ( Jiangsu ) | æ é¡/ ç¡é« | WÃºxÄ« | 6372624 | 688.02 row 7 : 7 | Nantong ( Jiangsu ) | åé | NÃ¡ntÅng | 7282835 | 408.02 row 8 : 8 | Shaoxing ( Zhejiang ) | ç»å´/ ç´¹è | ShÃ oxÄ«ng | 4912200 | 329.12 row 9 : 9 | Changzhou ( Jiangsu ) | å¸¸å· | ChÃ¡ngzhÅu | 4591972 | 358.04 row 10 : 10 | Jinhua ( Zhejiang ) | éå/ éè¯ | JÄ«nhuÃ¡ | 4614100 | 244.77 row 11 : 11 | Jiaxing ( Zhejiang ) | åå´/ åè | JiÄxÄ«ng | 4501700 | 266.81 row 12 : 12 | Taizhou ( Zhejiang ) | å°å· | TÄizhÅu | 5968800 | 279.49 row 13 : 13 | Yangzhou ( Jiangsu ) | æ¬å·/ æå· | YÃ¡ngzhÅu | 4459760 | 263.03 <table_name> : hosting_city col : Year | Match_ID | Host_City row 1 : 2008 | 1 | 1 row 2 : 2009 | 2 | 2 row 3 : 2010 | 3 | 2 row 4 : 2011 | 4 | 6 row 5 : 2012 | 5 | 12 row 6 : 2013 | 6 | 11
col : City row 1 : Nanjing ( Jiangsu )