What river is the location of the 68th World Science Fiction Convention next to?
68th World Science Fiction Convention The 68th World Science Fiction Convention (Worldcon), Aussiecon Four, was held 2–6 September 2010, in the Melbourne Convention and Exhibition Centre in Melbourne, Victoria, Australia, the location selected by the members of Denvention 3.
55th World Science Fiction Convention The 55th World Science Fiction Convention (Worldcon), was LoneStarCon 2, also known as "The Second Occasional LoneStarCon Science Fiction Convention & Chili Cook-off". The convention was held August 28–September 1, 1997, at the Marriott Rivercenter, Marriott Riverwalk, and the Henry B. Gonzalez Convention Center in San Antonio, Texas, United States. The first LoneStarCon, held in Austin, Texas, had been the North American Science Fiction Convention (NASFiC) in 1985, when the 43rd Worldcon was held in Australia.