Europe is called the "old" continent, even though civilisation actually started in Africa. Europeans are mainly Christian and speak 40+ languages of which English, German, Spanish, French and Russian are most common. Tourists will enjoy medieval cities and castles along Rhine and Danube, nature in Scandinavia and the Alps, as well as the European flair and different cuisines along the Mediterranean.
Amazon
The Amazon is by far the largest river in the world. It contains at least 5 times more water than any other river on the planet. Only the Nile in Africa comes close in regards of length, but nothing is comparable for volume.