Fantastic for knowledge of continents, countries and relative proximity of countries, have a go at GLOBLE
It’s a really fun way to learn countries and there’s a new mystery country each day! Guess a country and your guess will show on the globe as a shade of red – the darker the red the nearer your guess is to the mystery country. Rotate the globe after a couple of guesses as you narrow down the likely continent and location. It is fine to check a labelled map or atlas for clues!