There is big. There is massive. And then there is Changi Airport's future Terminal 5 that is in the works.
Giving an idea of the terminal's scale, Changi Airport Group chairman Liew Mun Leong told The Straits Times that T5 alone would be 10 times the size of VivoCity, Singapore's largest mall.
Funding such a behemoth would require tens of billions of dollars, said Mr Liew - and discussions were afoot on how to do this.
Mr Liew also revealed that, having decided that its future growth could lie beyond Singapore, Changi Airport plans to set up a fund of up to $1 billion. It is looking for investors and this fund will be used to invest in airport projects globally, especially in markets like China.