Its port, on the Arkansas River, is still considered one of the state's busiest, and the town still serves as a hub for regional railway lines.

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He recently won planning approval for a fourth runway for Frankfurt's airport, Europe's third-busiest, which may help prolong the state's economic upswing.

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The city-state boasts low corruption and one of the world's busiest ports.

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Vienna State Opera house - known as the Wiener Staatsoper - is one of the busiest opera houses in the world, producing 50 to 60 operas a year in approximately 200 performances.

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As an HIV patient herself, Ms Thabethe was so incensed by this state of affairs that she helped start iTeach, an outreach programme based at one of the busiest hospitals in KwaZulu-Natal.

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