Rather than penalising bad behaviour, Copenhagen wants to invite good behaviour by instilling in visitors the values and habits that make the city one of the most environmentally sustainable European capitals.

Credits: Pexels; Author: @readymade;

Earn rewards at Copenhagen attractions raging from a free lunch to a kayak tour or even a free entrance to a museum by participating in several sustainable activities, including biking or taking zero-emissions public transport instead of driving, picking up litter, or "pledging sustainable behaviour".