Lacock Abbey, Wiltshire
It dates back to the 13th Century and was once the home of Fox Talbot the photographic pioneer. It houses probably the oldest photograph negative which dates back to 1835. The camera equipment in the museum ranges from the very early plate glass cameras through to today's equipment.
And some Harry Potter scenes were filmed here!!
These were taken on my phone, but have a look at Suza's blog to see some really good mobile phone pictures.