As the world becomes increasingly urbanized, the number of megacities is growing rapidly. Today there are 37 cities worldwide with populations of greater than 10 million, and 84 with populations…

Philip E. Karp, Peter Ellis, Barjor Mehta |

Also available in: Русский | Română | Türkçe Ruins of the Church of Saint Paul, following the 1755 Lisbon earthquake. (Photo via Wikimedia Commons) [[tweetable]]Did you know that, in 1755,…

David Sislen, Alanna Simpson, Yann Kerblat |

Also available in: Russian The “miracle pine, ” a 250-year-old tree that survived the 2011 tsunami in Japan, has been preserved as a memorial to the 19, 000 victims of the disaster. (Photo via…

Ko Takeuchi |

Ancient cities, like Mohenjodaro in modern-day Pakistan, emerged relatively recently in human history (photo courtesy of Saqib Qayyum used through a Creative Commons license.)​ The growth of large…

Chandan Deuskar |