According to Official Guinness Records,
The largest gathering of tall people in a confined area is 136 and was achieved by people with minimum height of 178 cm (5 ft 10 in) for women and 188 cm (6 ft 2 in) for men in Melbourne, Australia, on 29 January 2009.
For a complete list of 2009 records, please visit 2009 Guinness Records in Australia.