A high limestone moat wall prevented prisoners from escaping an antique prison. Gawler ranges national park

A high limestone moat wall prevented prisoners from escaping an antique prison. Gawler ranges national parkA high limestone moat wall prevented prisoners from escaping an antique prison. Trial Bay Goal, Laggers Point, Arakoon National Park, New South Wales, Australia.

A jagged and winding canyon eroded by a river in a rocky desert

common sandpipers and curlew sandpipers in flight

Rows of empty red economy class passenger seats in a plane cabin

A handsome and happy smiling Muslim man wearing a traditional masar

A volunteer sweeps snow form the solar panels of a remote Adelie Penguin research station in Antarctica

An Eastern Common Froglet rests on mosses in a pond

An aircraft waiting to collect passengers from a terminal at dawn

Storm clouds block out stars as waves lap a deserted beach at night

Folded layers of rock and pressure ridges in a cliff face

A female Leopard surveys a woodland at dawn from the fork of a tree

A clear summers day over Bass Strait from the summit of Mount Oberon

feeds on seeds