(Bilder: www.enrico-verworner.de; Bob Thomas/ www.istockphoto.com; fotolia; © Galina Barskaya - Fotolia.com; © Marzanna Syncerz/ www.fotolia.com; Maridav/ www.istockphoto.com; Enrico Verworner; Valua Vitaly- Fotolia.com; Berlin.de; vandalay/ www.photocase.com; BerlinOnline Stadtportal GmbH & Co. KG)