You can find something to buy, and to eat there. There are many different kinds of shops, spices, groceries, and souvenirs

Tehran grand bazaar is really crowded based on the nature of it. There is so many old and kinda historical sites there and around there. The bazaar itself is a real time working marketplace.

I have visited Iran this april with my friends for two weeks. Iran is beautiful the bazaars also they are.... it is open all year around and inexpensive. I have bought henna of 1kg (i think so) costs like nothing...

This is the busiest bazaar that I have been in during our three week tour of Iran. It had plenty of atmosphere and a huge variety of merchandise to buy. Well worth a visit and has most items you need.

I have been there a few times. It feels like you are at the heart of the city. All sorts of stores of gold to silver, clothing, shoes, souvenirs, carpets etc. Carpet sellers are a bit clingy.

You can spend the whole day in an Iranian bazar and this was a good introduction ; the best one was yet to come later in Shiraz( Vakil bazaar)!!

I visited Tehran bazaar with my belgian friends and they bought great and good price pans there. :) I recommend you don't go there near Nowruz because it is insanely crowded. Don't miss carpet shops and galleries.