 Complete the following phrase:  Modern tourism can be traced to what was known as the Grand Tour, which was a traditional trip around Europe especially Germany and Italy, undertaken by mainly upper-class European young men of means, mainly from Western and Northern European countries. In 1624, the young Prince of Poland, Ladislaus Sigismund Vasa, the eldest son of Sigismund III, embarked on a journey across Europe, as was in custom among Polish nobility. He travelled through territories of todays Germany, Belgium, the Netherlands, where he admired the 