Meet the French ‘Spiderman’ who scales tall buildings harness-free

Alain Robert, a daredevil urban climber who has scaled over 100 buildings, tackles Spain's Melia Barcelona Sky Hotel. It took him 20 minutes to climb the building, which stands 116 metres tall. Robert has climbed tall buildings like San Francisco's Golden Gate Bridge, Dubai's Burj Khalifa complex, the Eiffel Tower in Paris, often without ropes or a safety net.