Where is it?

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Yes, it did flash though my mind, shortly before I walked up to the order counter at this imacculate venue, that $3.33 was — gulp! — half of the notorious Satanic sum of 666.

I tried not to let that bit of numerical trivia ruin my appetite, though. The two junior cheeseburgers were pretty big and were served on really good buns. It was all pretty devilishly fattening though, particularly the side of tater tots I foolishly insisted on adding to my order. 

So, can you tell me where this place is?