The Reflection Garden by Tom Stuart-Smith Studio in London is a revamped oasis nestled near St Paul's Cathedral. This garden used to be a bit neglected, but now it's thriving with a cool 65-square-metre reflection pool that mirrors the sky and the cathedral. The plants are lush and diverse, creating a chill vibe all year round. It's like a little urban paradise where you can kick back and soak in the historic surroundings.