Answers of Christian

Italy and Spain have both a super highspeed train system. Italy is 60% of the size of Spain and has more art and ruins to visit than any other country in the world. Spain has a mixed cultural heritage of Roman and Islamic origin. Italy has less drunken tourists than Spain.

It largely depends how you travel. By train would be easiest albeit not direct. The area around the lake of Constance is full of historic sites with cities like Feldkirch and their alpine-mediterranean houses with arcades in its center, Bregenz situated directly at the lake of Constance famous for Wagner Bregenz festival, St. Gallen with one of the most famous libraries worldwide (https://en.wikipedia.org/wiki/Abbey_library_of_Saint_Gall), Zürich with a unique art museum, the FIFA or world football museum, a collection of succulent plants as nowhere on earth etc., then to Lucerne.

Place Vendome, Trocadero, Place d'Etoile, Eifeltower, Sacre Coeur, Samaritaine, Louvre and all un between.