Originally Posted by
Scots_Al
Years ago I took a bus from London to Italy - from memory the route took in UK, France, Belgium, Luxembourg, Switzerland and Italy (six).
Plenty of bus routes across Europe would take in more.
I did Tbilisi to Budapest by bus with no stops other than changing buses in Istanbul and Bucharest. (Georgia, Turkey, Bulgaria, Romania, Hungary).
The bus trip actually started in Tehran, but I spent a week in Georgia before doing the long road to Budapest. (The best bus was the Tehran-Erzurum segment).