For over 900 years, the Tower of London has served as a loyal __1__ palace and fortress. Today, it's famous for its bloody history and for being the place where the Crown Jewels are kept.But it has served for other purposes, too. It has been the royal arsenal, royal mint, __2__ royal observatory or even the royal zoo. The site of the Tower was __3__ originally part of the Roman city of Londinium.
But, in 1066, a foreigner from north west France became King William __4__ of Britain, he ordered that a wooden castle built on the banks of __5__ the river Thames. The purpose of this fortress was to help secure London, the most important city in his view realm. Ten years later,William had the fortress rebuild in stone, and created a great __6__ fortified palace with walls three metre thick. Today, this building __7__ is known as the White Tower, and it stands in the centre of a much larger stone fortress, which was built during later centuries. The Tower now covers the area of seven hectares, and it stands near the __8__ busy financial district of the capital. But, once inside the high stone walls, it's easy to forget the modern world outside and to take a trip back through history. To help visitors explore, there are special ceremonial guards, called Yeoman Warders. They are also known as Beefeaters, and they are the best resource of information about the __9__ Tower's history. Nearly 40 Yeoman live and work in the Tower.They are former soldiers who earned the privilege of serving as __10__ Yeoman after long service.