The space adventure > Magellan III
The images opposite come from the Magellan probe. This probe observed the ground of Venus by radar. Indeed, clouds prevent us from having a direct view on the ground and these images were reconstructed from radar data.
At the top, an active volcano, the volcano "Sif Mons"; below the relief in the vicinity of Eistla Regio.
Animated reconstruction of flybys of Venus's surface: Western Atlas and Western Eistla .