CHANGI AIRPORT TERMINAL 4, SINGAPORE
Investors have attempted to green the Changi Airport in the hope of bringing the most comfortable space on passengers who have experienced a long and tiring flight. Trees are planted throughout the airport campus, they climb straight up to the highest floor of the buildings.
This effort is quite useful. As a result, the number of visitors coming to the airport increases annually. This area also become the first and the favourite check-in place for many tourists coming to Singapore.