On the south coast Antibes, Cannes and Nice are applying the idea to tourist spots.

ECONOMIST: Crime is the voters' biggest worry these days in France

Seeing a sharp increase in the number of travelers from South Korea, the prefecture invited 22 travel agencies from the neighboring country to show them around tourist spots and golf courses.

WSJ: Tourists Check Out a Newly Affordable Japan

If you go to New York City, there are the usual tourist spots: Times Square, Central Park and the Empire State Building, but if you want something a little different, head north to the South Bronx.

NPR: The South Bronx Sound, from Mambo to Hip-Hop

Located close to tourist hot spots Ipanema and Leblon, it is the largest favela in the city with an estimated 250, 000 residents living in the vertiginous, tight wall of brick and concrete housing that covers the entire hillside.

FORBES: Favela Tourism Provides Entrepreneurial Opportunities in Rio