Palaeolithic axes, Southwest Desert, Libya, North Africa, Africa

Some of the animals in the Palaeolithic artwork on the roof of the Zoo Cave, Bhimbetka Caves, a large group of rock shelters in quartzitic sandstone in the hills above Obaidullaganj, south of Bhopal, Madhya Pradesh state, India, Asia

Streaky bacon limestone solution feature, Minchin Hole, Southgate, Gower, West Glamorgan, Wales, UK, Europe