"The Redwood Observatory is an adventure map structure in Heroes of Might and Magic III and Heroes of Might and Magic V. There is a similar structure in Heroes of Might and Magic IV, with the same effect, called the Redwood Tree. In all games, the effect is the same: by visiting it, the player reveals much of the surrounding map, though in Heroes IV, the area is still under fog of war."@en . . "Redwood Observatory"@en . . "The Redwood Observatory is an adventure map structure in Heroes of Might and Magic III and Heroes of Might and Magic V. There is a similar structure in Heroes of Might and Magic IV, with the same effect, called the Redwood Tree. In all games, the effect is the same: by visiting it, the player reveals much of the surrounding map, though in Heroes IV, the area is still under fog of war."@en . .