The Rock Art of Africa at the British Museum

The British Museum has put online a huge database of rock art from Africa, with around 25,000 images. You can search or peruse the images here. Above is an image from Libya' Acacus Mountains dated to the Round Head period, thought to be around 10,000 to 8,000 years ago.

Famous "Fighting Cats" carving from Libya.

Human figures from Niola Doa, Chad.

Cattle from Jebel Uweinat, Sudan.

Bull from Libya.

Chariot from Libya, dated to the Horse Period, 3,000 to 2,000 years ago.

Collection of images in Libya's Acacus Mountains.

Rhinoceros from Ait Ouazik, Morocco.