BEST possible 3-layer wall Level 8 Town Hall in the game Clash of Clans (early stage). All walls are triple-layered on all sides. The enemy attackers will have to go through 3 layers of walls, and if they were to penetrate the inside, then they will be attacked by ALL your troops because they are all within the reach of the center.
Video shows multiple attacks and all failing because of this strong defensive structure. The inside resources are protected by triple layers of walls. This is an extremely strong base design.