Geek central, Melbourne

They say geek is the cool, right?

Geek central in Melbourne must be the corner of Elizabeth and Little Collins Streets.

Why? Because within a few metres are no less than three pop culture shops:

Firstly, there’s the Doctor Who “popup” (eg temporary, until January) shop. Actually it has Sherlock merchandise too, which probably makes it more of a Steven Moffat shop.
Doctor Who Popup Shop, Melbourne, Summer 2014-15

Secondly, a little further up Little Collins Street is this shop, which as far as I can tell, has no actual name. At least, none prominently on display. (Professor Google says it’s called “Critical Hit“.)
Collins Gate pop culture shop

Thirdly, that old favourite, Minotaur. I used to shop there in the 80s when it was in Swanston Street. Then it moved to Bourke Street, and more recently(ish, well, probably 10+ years ago now) to Elizabeth Street — the former Melbourne Sports Depot, I think.
Minotaur

Also nearby:

EBGames in Swanston Street (also a former Melbourne Sports Depot?) has opened a geek section in their basement.

The ABC Shop has moved to Emporium.

Want to dress like Sherlock Holmes? The menswear shop in Bentleigh is selling Deer Stalkers

Spotted at Stanley’s Menswear in Centre Road: UK-made Deer Stalker – a snip at $129.95.

Deerstalker in Stanley's Menswear, Bentleigh

(Apart from sleuthing, I guess you could also use it for stalking deer.)