Allegra in Stratford is home to a huge, 11,290 sq ft rooftop terrace and garden complete with wraparound views of the city. They open their doors each spring with a menu, full of seasonal British produce, overseen by Head Chef Patrick Powell to match. Surrounded by greenery and water features, it’s a beautiful spot for a sunny day spent sipping on spritzes, with good food and live music on Sundays.