about 2500 miles
more than 1
Yes, you can definitely travel to Greece on a cruise. However, you would be starting most likely from a port in Europe.
To teach people about Christianity.
North of Italy there are central Europe (Switzerland and southern Germany) and northern Europe (northern Germany, Denmark, Sweden and Norway. To travel to the rest of Europe you need to cross the Alps.
The Mediterranean Sea borders northern Africa and southern Europe.
To teach people about Christianity.
They travel to many parts of northern Europe, including Germany, Finland, Poland and other countries.
Tunisia is in Northern Africa - not Europe.
The question is confusing. The Crusades are the name of the wars, not things or people, so they cannot travel to Jerusalem or anywhere else, save the minds of people who think about them. As for where the battles and travails of the Crusaders would take them, No, there were numerous battles and paths along the Mediterranean Coast on the road to Jerusalem from Europe.
The 4 main islands that make up the group known as the Sporades Islands are very popular with visitors who travel to Central or Northern Greece .
Nice weather, reasonable prices, easy travel distance to and from most of Europe.