Most expensive cities

Luanda, Angola: Luanda is the largest city in Angola. It sits on the Atlantic coast of the country and is one of the fastest growing economies in the world. (REUTERS)
Toyko, Japan: Tokyo was #1 in 2009 and has been fluctuating between 1st and 3rd since 2003. (REUTERS)
N'Djamena, Chad: Chadian women walk past fried locust sellers at a market in Chgoua in N'Djamena, the once war-torn capital of Chad. (REUTERS)
Moscow, Russia: Russia's President Medvedev delivers a speech during a military parade in Red Square on Victory Day in Moscow. (REUTERS)
Geneva, Switzerland: Fifth in 2010. Fourth in 2009. (REUTERS)
Osaka, Japan: Passers-by walk under advertisements in the Dotonbori shopping and amusement district in Osaka. (REUTERS)
Zurich, Switzerland: Smoke billows from chimneys over the rooftops of downtown Zurich after the coldest night of this winter. (REUTERS)
Singapore, Singapore: The skyscrapers of Singapore's central business district are pictured before Earth Hour. (REUTERS)
Hong Kong: Participants compete in a dragon boat race to mark the annual Tuen Ng or Dragon Boat Festival in Hong Kong. (REUTERS)
São Paolo, Brazil: Brazil's Ronaldo holds up a Brazilian flag during his last soccer match with the national squad against Romania in Pacaembu Stadium in Sao Paulo. (REUTERS)

The city with the highest cost of living in the world is not New York or Tokyo, but Luanda, Angola.Those complaining about the high rent prices in their home cities may want to look at Mercer's 2011 ranking of the world's most expensive cities.