The Tower of London was 6.1. ______________ in 1078 for William the Conqueror. At first, it was the residence of kings. With time it also served as a prison. A lot of famous figures were imprisoned in the building. It was thought there was no escape from the Tower, as it was surrounded by water. Nowadays it is one of the 6.2. ______________ popular tourist attractions in London. People from the whole world come to this place to see the Crown Jewels which are kept here. If you want to visit the Tower, we suggest 6.3. ______________ the Beefeaters to show you around. These men are guards of the Tower who live with their 6.4. ______________ here and their work is to take care of the Tower and its visitors. Ravens are said to be the symbols of the Tower. A legend says that as long as these birds live in the Tower, the 6.5. ______________ monarchy will last. So the guards make sure that at least 6 birds are present in the area.