First Aerial Crossing of the South Atlantic

This monument near the Torre de Belém marks the exact spot where, in 1922, two Portuguese naval aviators — Sacadura Cabral and Gago Coutinho — took off in a Fairey floatplane to complete the first-ever aerial crossing of the South Atlantic. What makes it remarkable is that they actually did it with a sextant adapted for aerial navigation, a world first in its own right. It's a quietly powerful tribute to one of aviation history's most overlooked epic journeys.