Monthly rent, unfurnished 2-br luxury apartment: $1,000
Lunch for one at a nice restaurant: $27.50
One liter of gas, unleaded 95 octane: $1.06
Beer, local brand: $1
Cup of coffee, including service: $2.50

Like other capitals in this list, San Salvador is a center of government and business. The city is home to many communications and media companies, as well as banks and financial firms. Income in El Salvador remains low and the country's per capita gross domestic product was about $7,200 in 2010, according to the CIA World Factbook.