Eton and Harrow may be among the most well-known boarding schools in the world, but they aren't the most expensive – in fact, some institutions cost three times as much.
One of the most exclusive schools in the world has seen a rise in demand from parents who are living in countries in lockdown - with skiing, robotics and creative thinking on the curriculum.
One of the oldest and best known schools in Switzerland, the Institut auf dem Rosenberg, is situated in 100,000 square meters of private park, above the city of St. Gallen.
After teaching moved online amidst the coronavirus pandemic in March, the £110k-a-year school invited its 200 students back to repeat the spring term in person with teachers.
Headmaster Bernhard Gademann told The Telegraph the crisis had provided the school and its pupils with an opportunity to learn, explaining: The pandemic has shown how important it is for students to be in a classroom where they can interact with each other. You can learn an exam spec behind a screen, but you cannot experience education from behind a computer screen.