When the shortlist was announced, just before the Games began in July, judges described the Olympic Stadium in Stratford as having "a spirit of fun".
They said the architects had "designed a space to create an amazing atmosphere, where every seat has a great view".
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John Cantlie, who worked for a number of Fleet Street newspapers, is thought to have been taken hostage in November 2012.
The union published a 'no show' league table for last year the worst offenders for cancellations.
Zalkalns was jailed in his native Latvia for eight years in 1988 after he admitted killing his wife with a piece of electrical equipment.