This is not so much a place as a concept. Did you know, for example: that with a uniquely biodiverse landscape – with nature reserves, parks and gardens – the Greater London National Park (still only an idea) is recognised as one of the world’s most important urban habitats. Over 1,300 Sites of Importance for Nature Conservation cover 19% of the National Park. All told, the capital is home to more than 1,500 species of flowering plants, 300 bird species, 300 languages spoken, 170 museums, four UNESCO World Heritage Sites, etc …