The National Gallery is an art museum dedicated to exhibitions featuring European art from across the eras. Over 2,400 paintings are housed in the museum, dating from circa 1200-1900. It was built in 1824, and is located within Westminster, Central London. Entry is free, but requires a booking in advance. Furthermore, small donations are available and encouraged in order to help fund maintenance costs and keep the museum running. It was built in 1824, and is owned by the government of the United Kingdom.