Have you ever seen a park that's right smack dab in the middle of a building? Called the "Culture Forest," this art and culture center has an urban park designed inside! Seoul-based Unsangdong Architects won first prize in a competition to build this in SeongDong-gu, South Korea. Powered and naturally lit by the sun, the center is filled with benches, trees, lush vegetation, and places to relax and reflect while looking down at the city.