Airline passenger traffic is not slowing down, registering worldwide growth of 6.8% in 2015. The growing demand means more opportunity but also more competition, and airports need to be innovative to attract both business and pleasure air travelers.

Long layovers can be tiresome, but not necessarily in Changi, Singapore. With free video games, film screenings, a swimming pool and multiple green spaces, the airport has become a bonafide place to relax, part of which helped it get voted the best airport in the world last year.

No more fatigue in Helsinki airport either. Sleeping pods, yoga classes and massages are definitely a way to improve the weary travellers' well-being.