Lapham's Quarterly on disasters. Really a great read, the last letters of Robert F Scott freezing to death in the Arctic, the realities of global extinction events, invasions of the barbarians into Rome, a survivors tale of the Titanic, plague stories from 1300, a bizarre WW1 story of being in no mans land under shelling. WowZA, we have it good!
http://www.laphamsquarterly.org/about