This is the Kelburn Castle in Scotland, close to a wonderfully-named Fairie village (Fairlie, actually) - see here - painted over by Brazillian street artists from Sao Paolo Nina and Nunca Os Gemeos (completed in June 2007):
Emily the Strange is an artist, a dreamer, an Inventor, a scientist, a skater, a rocker and an individual. She's not the average thirteen year-old-girl. Pink is her worst nightmare and she wears the same black dress every day. She loves math and science. Her best friends are her four black cats and she's into old rock & punk. Emily's a subculture of one, and a follower of no one but herself.