Trafalgar Square, London Bridge and Big Ben are 3 spots that you simply cannot miss in this incredible city. Trafalgar Square, a beautiful landmark with Nelson's Column towering high above, is definitely worth a visit. London Bridge is one of the most popular attractions in the city. Take a walk over the bridge, or along the River Thames, an area jam-packed with British history and culture. Soar to the top of the tallest building in the UK and look out over London from The View from The Shard, the viewing gallery on the 72nd floor of this skyscraper. Finally, head over to Big Ben, London's famous clock tower, next to the Houses of Parliament.