Charles C. Mann's latest book 1493 is as fascinating as his previous book 1491. Early on, after explaining how the US north-south divide was created on top of cultural differences between indigenous people and by Malaria-friendly temperatures he gives us the above image of the Tara Mansion from Gone with the Wind. The sole purpose of Southern plantation mansion design and site-choice is to keep out the malaria carrying mosquitoes: "High on a nearly treeless hill, with tall windows to admit the breeze, it was ideally suited to avoid mosquitoes and the diseases that accompanied them". Mann uses the term Villa Plasmodium. Fascinating.