On March 28th local time, Alain Robert, the French "Spiderman", climbed the world's tallest building - the Burj Khalifa in Dubai. Alain Robert is a world-renowned expert in illegal building climbing. In 2007, he climbed to the top of the Jin Mao Tower in Shanghai without any safety measures. He has also climbed many famous buildings such as the Eiffel Tower and the Petronas Twin Towers in Malaysia with his bare hands.