Many fighting games take place all over the world. So, to bring those locations to life, game developers often stick pretty close to reality.
If you've ever played a fighting game, this is no surprise whatsoever. As pointed out a ways back by fighting game historian Crayfis on the Shoryuken forums (via website SebastianMihai.com) here is a solid job of showing the sources of many iconic fighting game locations.
Super Street Fighter 2 and Hong Kong's Tiger Balm Gardens
King of Fighters 98 and Spain's La Alhambra de Granada
Fatal Fury 2 and Australia's Uluru
Fatal Fury Special and Hong Kong's Jumbo Floating Restaurant
Capcom vs SNK 2 and Venice's Rialto Bridge
Street Fighter Alpha and Rome's Colosseum
Fatal Fury Special and Seoul's Namdaemun Gate
Here are a few more, via Tumblr Kturbio.
Street Fighter II and Thailand's Ayutthaya.
Super Street Fighter II Turbo and Mexico's Cabañas Cultural Institute.
Street Fighter EX and China's Tienanmen Gate.
Street Fighter Alpha 3 and Greece's Mykonos.