JUNG YEON-JE/AFP/Getty Images
South Korea enjoys a unique distinction as the most plugged-in country on the planet. And its capital, Seoul, leads this trend, coming in first for broadband penetration. But Internet connectivity is only one of the city's many strengths. Given the prominence of its financial exchanges, Seoul's capital markets rank third in the world. As a convenient and preferred meeting place for international conferences, it places fifth in that category. And Seoul ranks high in hosting major sporting events and its number of inhabitants who possess university degrees.