Guildhall of St George - Credit: Wikimedia Commons
The Guildhall of St George is a Grade I listed building in King’s Lynn, Norfolk, England. The Guild of St George was founded in 1376 and constructed the Guildhall between 1410 and 1420. It is the largest extant guildhall in England. It has been in use as a theatre since 1445, making it the oldest theatre still operating in the United Kingdom, and the only one still in existence in which William Shakespeare is believed to have performed. The building is in the ownership of the National Trust, which has leased it to King's Lynn and West Norfolk borough council for hire as a music, performances, lectures and entertainment venue. Read more on Wikipedia
Source: en.wikipedia.org