Estas son 20 las ciudades más visitadas del mundo en 2013

A slow-shutter exposure shows an aerial …A slow-shutter exposure shows an aerial view of evening traffic in Shanghai on January 9, 2014. China's auto sales smashed through the 20 million mark last year, growing nearly 14 percent and extending its lead as the world's biggest car market, an industry group said on January 9. AFP PHOTO/Peter PARKSPETER PARKS/AFP/Getty Images

Traffic and people go through New York's Times Square on May 13, 2010. AFP PHOTO/Stan Honda (Photo credit should read STAN HONDA/AFP/Getty Images)

The skyline of Hong Kong island and Kowloon from The Peak shortly before lights are switched off for Earth Hour in Hong Kong on March 27, 2010. Global landmarks from Sydney's Opera House to the Forbidden City, to the glittering Las Vegas Strip, will be plunged into darkness Saturday as activists bid to reinvigorate the climate change fight. AFP PHOTO/MIKE CLARKE (Photo credit should read MIKE CLARKE/AFP/Getty Images)

GRA042. BARCELONA, 12/10/2013.- Varios miles de personas se concentran ya en el centro de Barcelona a la espera de que arranque el acto central de la manifestación promovida por la plataforma "Som Catalunya, Somos España", que ha desplegado en el paseo de Gràcia una bandera de cien metros, mitad española y mitad catalana. EFE/Toni Garriga

(FILES) This file picture taken on May 2, 2013 in Rome shows a couple chating outside Colosseum during a preview of the night tour "The moon over the colosseum". Italy's culture minister assured UNESCO on June 30, 2013 that efforts were being made to restore the long-neglected Roman city of Pompeii, after the United Nations organisation urged the country to speed up repairs. Long-delayed repairs to the 2,000-year-old Colosseum in a project funded by Italian billionaire Diego Della Valle to save the crumbling monument didn't start so far. AFP PHOTO / FILES / GABRIEL BOUYS

A slow-shutter exposure shows an aerial …A slow-shutter exposure shows an aerial view of evening traffic in Shanghai on January 9, 2014. China's auto sales smashed through the 20 million mark last year, growing nearly 14 percent and extending its lead as the world's biggest car market, an industry group said on January 9. AFP PHOTO/Peter PARKSPETER PARKS/AFP/Getty Images

Vanidades

A man looks at central Riyadh from the Faisaliah Tower – Saudi Arabia, December 14, 2003. – RTXMCCI