Whether you go for the sweeping architecture, the myriad of historical high rollers that are entombed within, or seeking a spiritual refuge, you will find all three. The building is breath taking in itself, and the myriad of tombs are not only a lesson in history, but in life. The inscriptions often will move some to tears. I found Elizabeth and Mary's epithet particulary poignant as well as many others. The sheer scope of British lit can be seen in poets corner, and if you are particularly lucky, as I was, as you walk down the one ornate corridor, you will hear the Boys Choir practicing, somewhere in the abby. The grave of the unkown soldier is particularly touching to anyone who has a loved one in the military, and nothing makes you feel closer to God then lighting a candle and praying, in the way that people have for centuries. Definitly a do not miss site

Definitely head here if you're in London. Even if you're not into religious areas, it's worth it to see the burial place or memorials of famous citizens of the British Isles and the rest of the world (Elizabeth I, Milton, William Blake, Robert Browning, Newton, Chaucer, Darwin, Churchill, Oscar Romero, Handel, Wilberforce, Dickens, Tennyson and Martin Luther King are just a few of those that can be seen). You can also see where Elizabeth II and many of her ancestors were crowned, and also where Princess Diana's funeral was held.

Westminster Abbey is one of the highlights of any trip to London. In a relatively small place you can get the 'feel' of the huge history of Britain. Monarchs, nobility, artists, 'unknown soldier' monuments for all wars fought - you can find them all here.
For a more enjoyable experience, arriving early in the morning (before the tours) is a great idea. Otherwise the cramped space inside might lessen an otherwise amazing experience.

I saw a lot of cathedrals, churches and abbeys in Europe, but Westminster really is something to see! Every surface is covered in history and it's amazing how many names you'll recognize while you wander through. I went mostly to see Newtons burial place, but stayed for hours. It really is a beautiful place!

This is a very impressive church. I'm not easily impressed, but standing in front of these imposing towers with a beautiful blie sky (rare for London) made for some amazing views. You really need to see it in person to grasp its awesomeness.