This is the interior of the stunning Yenişehir Çarşı Camii. It is on the same street as the Tarlabaşı Pazar (‘çarşı’ means shopping district in Turkish). This mosque is brand new (about fifteen years old). Here is a look at the exterior (scroll down a bit). Here is an overhead view of the mosque and the neighborhood. It is not clear if it was part of the controversial urban renewal/gentrification plans afoot (which may or may not be proceeding, given Istanbul’s bureaucracy).
Here is a view of the back of the mosque from a side street for a perspective on the neighborhood.
Another weekly market, newly-discovered (by me, anyway), and only a twenty-minute walk to get to (up and down, naturally). This one stretches for several blocks, much bigger than the Oğuz pazar mentioned earlier. Produce, cheese, olives, clothing, shoes, housewares, fish (to cook and eat, as well as goldfish pets), honey, eggs, and much more is available. This audio is a condensation of vendor calls heard during a stroll through the market; the duration of the actual walk was much longer, of course. I particularly like the singing vendors. Tarlabaşı, a neighborhood in Beyoğlu is here. The neighborhood has an interesting history, which you can read more about here.