Westminster Cathedral's red-and-white brick bell tower is one of London's most visible landmarks. The campanile rises more than 210 feet over the streets below, making it one of the city's best viewing platforms.
Its 360 degree views take in everything from the Houses of Parliament and Battersea Power Station, to the Shard of Light and Canary Wharf. You might also be able to spot the London Eye, Buckingham Palace, St. Paul's and Wembley Stadium.
Don't worry if you can't climb the stairs, because there aren't any -- a lift will take you all the way to the top.
Westminster Cathedral is the largest Roman Catholic Church in England, and is the seat of the Catholic Archbishop of Westminster. Its striking stripes and Byzantine-style decorations were designed by the Victorian architect John Francis Bentley in the 1890s.