Nairobi has been home to UNEP since 1973 and the organisation moved to Gigiri - the site of a former coffee farm - in 1975. Over the intervening years, these beautifully landscaped gardens and nature sites have also become home to over 100 'famous' trees planted by Royalty, Presidents, environmental heroes, athletes, UN staff and children. It is hoped that visitors to UNEP headquarters will enjoy this guide while walking among trees which provide a glimpse into UNEP's 40 year history in Kenya.