Notice that the two towers are a little different. The building is massive inside, with a number of side altars and chapels. We walked over the tombs of famous historical figures and writers, the stones smooth from the countless feet that have stepped there. Because it is a house of worship, it is not considered disrespectful to walk over the burial sites...except for the Tomb of the Unknown Warrior, which holds the remains of an unknown World War I soldier and is marked off with a border of red poppies. Parts of the Abbey were damaged during the Blitz in World War II, and just beneath a new stained glass window depicting some of the soldiers from that war, there is a shrapnel hole about the size of a grapefruit in the wall. Covered only with plexiglass, the hole allows light to come through into the dim area and serves as a reminder of the suffering of that time. The walls echoed with the sounds of tour groups and individual visitors, but no photography was allowed. I considered turning off my flash and taking a few photos surreptitiously, but I was afraid I would be asked to leave, and I didn't want to miss the opportunity to see the many interesting sights there--the coronation chair that has been used at the coronation of every British monarch since the 12th century, the tombs of kings and queens, as well as many famous writers and poets, the soaring carved arches, and just the sense of history.