Major world events including the Olympic Games and World Cup Soccer bring thousands of new visitors to a city.
Sporting events like the Olympics and World Cup Soccer are viewed as having a positive effect of increasing tourism.
Negative events such as wars, political turmoil, terrorist attacks and healthscares have dramatically reduced tourism to affected destinations.
Before planning overseas travel, Australians are recommended to visit www.smartraveller.gov.au
Increased oil prices and the resulting increase in airfares as well as the Global Financial Crisis has reduced tourism numbers.