The Guardian of the Gates leads the travellers through the Emerald City, past shops and houses and people.<\/p>\n
Explore these websites and videos to find out more about cities.<\/p>\n
The world’s first cities<\/a> grew in the Indus Valley, but they don’t exist any more.\u00a0Here are the Ten oldest cities in the world<\/a> that still exist.<\/p>\n Moving more up to date, here’s a fantastic graphic of how cities have grown over the last 500 years and into the future. Look out for Glasgow!<\/p>\n https:\/\/www.youtube.com\/watch?v=_7jCioztj_c<\/p>\n And of course, plenty of cities that were destroyed by natural disasters and some may never have even existed!<\/p>\n