This letter written by Queen Elizabeth II in 1986 won't be opened until 2085.

Outdoor art exhibition made of classic Tetris pieces.

Cockatoo Island is a Heritage-listed island in the middle of Sydney Harbour.

This copper-coated, multi-arched dome is surrounded by a moat and lights up at night.

With a surface area of nearly 500 square meters, welcome to the world's largest paraboloidal dish solar concentrator.

From a distance, this statue of an eagle looks like a giant chicken on a stick.

Come for the flowers, stay for the bats!

A collaboration of art and ornithology mourns the calls of Sydney's lost birds.