Great Yarmouth is characterized by an incredible mix of different architectural styles. One of the most prominent landmarks is the Tollhouse, a medieval building that is considered one of the best preserved in the United Kingdom. While Great Yarmouth's seafront has architectural features from the Victorian and Edwardian periods, the Roman and medieval walls reflect the town's rich history. Another landmark is the Grade II listed "Britannia Monument," a tribute to Admiral Lord Nelson whose design is reminiscent of the famous Nelson Column in Trafalgar Square, London.