A mud brick watch tower in an ancient desert fortress. Hong kong

A mud brick watch tower in an ancient desert fortress. Hong kongA mud brick watch tower in an ancient desert fortress. Narin Castle, Meybod, Meybod County, Yazd Province, Islamic Republic of Iran.

An abandoned block of land between warehouses in an inner city suburb

Barbwire Vine a robust thorny climber that may reach the forest canopy Parkville

Cow grazing on a farm after nightfall as a cool Autumn mist descends

Ice-polished rock glacial striations made smooth by glacier erosion

on the summit of Table Mountain

A mother and son hand feed an Eastern Grey Kangaroo in a wildlife zoo

A collection of discarded chrysalis after the pupa have emerged as butterfly

Weathered timber tiles start to lift from an old roof

The curved neck and pointed bill of an African Darter

Fergusson Island

A free-diver skims over a tropical coral reef using fins and snorkel

Sunset turns the exposed summit of a mountain orange above a glacier fracture zone