Rochebere is a large mod for the Elder Scrolls V: Skyrim by Sam Vincent. It includes a new lands area and a huge city with it's own lore and backstory, along with a main quest-line and sidequests.
This is the first Square you see upon entering Rochebere. It leads on to the Mainstreet... That's if you can resist stopping off at The Hanging Hag Tavern for a pint of Ale.