Begin by entering a number of cities – ’50’, ‘100’, ‘250’ or ‘5h’ – then name the closest world cities of 50K+ population to your geographic location (as determined by your browser’s location function) IN ORDER – meaning you have to name the closest first, then the 2nd closest, etc. Your location will show up as a bright purple marker, and the location you need to name (the closest unnamed one) will show up as a larger marker color-coded according to its population.

To use this quiz you will have to choose ‘Allow’ if your browser asks to share your current location – you also may have to restart the quiz after choosing this. If your browser does not allow getting your location the quiz will not load.