How to arrange free travel in Britain, France, Italy, Switzerland, Rome and Austria?

First of all, apply for two visas in the UK and Schengen respectively. Schengen suggests applying for a French visa. The timetable suggests advanced Britain, London, Cambridge, York, Edinburgh, High and Low, Loch Ness, Sky Island, Williamsburg, Manchester City, Peak District, Lake District, Cotswolds, Oxford, Bath and London. This is the overall arrangement between England and Scotland. Take your time, half a month is not enough. Then fly from London or Eurostar to Paris, Dijon, Geneva, Lucerne, Zurich, Liechtenstein, Innsbruck, Salzburg, Vienna, Venice, Veronica, Milan, Florence, Rome and Naples, and then return home. France involves the South France agenda and Bordeaux, such as Nice and Marseille. If it is not a cursory tour, it will take at least 15+20 days. If you look at the major cities, the whole journey will take at least 15 days. I just walked around Europe, 25 countries, and didn't go 10. It took four months.