by Elio — While ex­plor­ing the Mid-At­lantic Ridge in 2000, a re­search sub­ma­rine trav­eled 15 km west to­wards the dome-like At­lantis Mas­sif. Here its crew en­coun­tered tall un­der­wa­ter struc­tures that re­sem­bled glis­ten­ing white cathe­dral spires. The area was dubbed the Lost City hy­drother­mal field. Some of the tow­ers were 30 to 60 me­ters tall...