As it was being built, the Perth Arena copped a lot of flack, even being derided as Perth's ugliest building. But now that it's finished I think a lot of people will be reassessing their opinion of it.

Sure, it's not to everyone's taste. But it's certainly a visually distinctive structure that leaves a mark on you.

The thing I find most striking about it is the deep blue colouring of the entrance and wall above it. It's an amazingly powerful hue created by the artist Yves Klein.

I suspect its intensity might fade in time. But for now it's the most eye-catching aspect of the building, in my opinion.