Giant Planisphere – Mount Owen, Menzies

The astrotourism programme behind it is a genuinely smart piece of regional development. Inland Western Australia has some of the darkest skies on the planet – no cities, no humidity, no light – and the state has been installing viewing platforms, interpretive signage and star wheels in Goldfields and Wheatbelt towns that otherwise have nothing to offer a visitor after sunset. A planisphere costs very little and turns an empty night into an activity.

Menzies has an unusual claim on the visual already. Lake Ballard, west of the town, holds Antony Gormley's Inside Australia – steel figures scattered across kilometres of salt pan, each derived from a laser scan of a local resident. It is among the most significant works of art in the country and it is in the middle of nowhere by design.

A town with Gormley figures on a salt lake and a star wheel on a hill has a genuinely distinctive pair of reasons to stop, both of which involve walking into emptiness and looking at something.

Nobody wrote down its age, the measurements and a materials note.