Westminster

As lavish as they come, this is an old-school, Greek seafood institution that's become famous in Montreal, New York, and the world over the last forty years. Now it's arrived in London, taking up residence in no less than a grand old listed building in Mayfair. Here, on ostentatious slabs of white marble, fresh fish flown in from the Mediterranean is displayed in the "market" before diners are led to their sleek, white tables. What's next is transcendent seafood served along with some of their classic starters like octopus salad and their famous, thinly sliced fried zucchini. Fish this fresh comes with a price tag.

Hidden in this iconic Brutalist building is a hub of creativity curated by the current doyenne of cool, shop owner Alex Eagle. Many fashion companies are set to move in here (including the British Fashion Council), though Eagle is still free to host and create just about anything she desires—currently it's The Infinite Mix a powerful show of video installations put on by the Hayward Gallery. Stay tuned for everything from fashion presentations, to pop-ups, concerts and more. At the heart of this creative hub is a leafy café with incredible views of the Thames, where London's creatives convene.

Papouelli—formerly known as Papillon—focuses on beautifully crafted, classic children's shoes that are actually practical. Their bestselling moccasins are adorable, though they also sell loafers, booties, and special occasion shoes for littles of all ages.

After the 2013 restoration of the grand Victorian building and the chronological rehanging of the permanent collection, it's all the more paramount you make the trip to this classic art institution. You'll find all the British masters here.