Photo de stock - SINGAPORE - JAN 13, 2017 : The Changi Airport Skytrain at Singapore Changi Airport in Singapore. Opened in 1990, it was the first auto-guided system in Asia

Photo de stock: SINGAPORE - JAN 13, 2017 : The Changi Airport Skytrain at Singapore Changi Airport in Singapore. Opened in 1990, it was the first auto-guided system in Asia.

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