I hadn't ever been inside; it was called the HI-N-BUY Tehran Mart, and it lasted for almost precisely a year.
As to why it went under? I have no specific knowledge, but would suggest three contributing factors:
- Economic downturn. (Damn this sluggish so-called recovery!)
- Anti-Iranian sentiment running at highest levels since the hostage crisis due to concerns over nuclear weapons program.
- Location -- it is, after all located in the Dunkin' Donuts Death spot.