Singapore's Changi Airport Butterfly Garden is designed to...

SINGAPORE - 2013/03/19: Singapore's Changi Airport Butterfly Garden is designed to be a tropical nature retreat for passengers of Changi Airport Terminal 3s to have a quick rest. It is home to more than 1,000 free flying singapore butterflies, and close to 50 butterfly species native to Singapore and Malaysia were specifically selected to be bred in the butterfly garden. The two-storey open-air enclosed garden is protected by a curved-shaped roof made out of high quality stainless steel mesh and unique glass windows, facing Changi Airports large airfield. It was designed in this manner to keep the butterflies in, maintaining exchange of wind and natural air which is vital to the survival of butterflies. . (Photo by John S Lander/LightRocket via Getty Images)