It looks like this past Saturday Australia's city of Canberra took Earth Hour to heart. According to the Earth Hour Blog, 73 percent participated.

And their participation made a measurable difference...

Residents and businesses across Canberra showed their support for Earth Hour resulting in an impressive 11.4 per cent drop in electricity consumption for the hour, according to ActewAGL.

Participation across Australia is estimated to have reached 58 percent. Nice job! However, nothing says it better than pictures like the ones above. Visit this Flickr group for even more images from around the world.