One of the best things about vacationing in Europe is you can country-hop like it's no big deal. With nations packed so close together, you can go from one to the next in record time — by car ...

Seats on this service cost from 79.90 euros/£67/$86, couchettes from 139.90 euros/£118/$152 and sleeper cabins from 189.90 euros/£160/$207. Solo cabins feature a toilet and shower. Those in ...