See Unexplored Map- When getting ready to move a unit, hold the Left Mouse Button. Move the unit over the map grid. As it passes over each grid square, coordinates and distance will be displayed, along with text associated with landmarks and cities, even if the square is unexplored (blacked out).
Various Cheats- While playing the game press Ctrl + K to start the map editor. Now enter one of the following codes:
Effect / Code
Change year / [Shift] + [F5]
Create unit / [Shift] + [F1]
Discovery technology / [Shift] + [F2]
Edit energy credits / [Shift] + [F4]
Edit Faction diplomacy / [Shift] + [F9]
Full map / Y
Kill opponent / [Shift] + [F6]
Switch sides and reset view / [Shift] + [F3]
View FMV sequences / [Shift] + [F8]
View replay / [Shift] + [F7]