Also worth checking out some of the mega projects on Open Infrastructure Maps like this one in central China.

This planet-scale map of the global electricity network is incredible.

	▲	forgotTheLast 4 hours ago \| parent \| next [-]
		I expect to see it on the front page of HN by the end of the day
	▲	aembleton 6 hours ago \| parent \| prev [-]
		OpenStreetMap (the DB behind this map) is incredible. It has so much useful information inside it.