The Summer Opening allows overseas tourists to visit the buildings and grounds of the home of the oldest democracy since antiquity. Parts of the original building built by Edward the Confessor have been destroyed by fire leaving the oldest part of the building, Westminster Hall, at 900yrs old. The 13 ton bell of St Stephen's tower is more affectionately known as Big Ben, ringing out it's distinctive tune since 1859. The Summer Opening is from August 1st until September 30th, admission £7. You can pre book your tickets by calling this number 0870 906 3773, or buy them on the day from the ticket office.