1 - Gerbils can smell adrenaline and are installed in airport security areas to detect terrorists.
2 - Mongolia’s largest airport is named after Genghis Khan. He had over 500 wives and a vast number of children: 1 in 10 people in Central Asia today are his direct descendants.
3 - If all the land in Finland were distributed equally, each Finn would have 14% more space than Heath-row Airport’s shopping area.
4 - Gatwick, the name of the UK’s 2nd-largest airport, means ‘the farm where goats are kept’.
5 - More than a third of the world’s 43,794 airports are in the USA.