Pittsburgh's unique topography of mountains, rivers, and valleys makes it an outdoor lovers paradise, and recreational opportunities are available year-round. Unlike its smoky past, Pittsburgh's dedication to environmental renewal can be seen in parks, green buildings, and sustainable development-all of which contribute to its abundance of amenities. Stadiums and sporting venues are a spectator's dream, while marathons, charity walks, and bike races give everyone the chance to be a champion. More fun can be found at amusement and water parks like Kennywood and Sandcastle, both just minutes from downtown.