Sci-Fi Fortress of Skyscrapers to Surround & Defend Japan

This is a conceptual project with a breathtaking scope: to create a perimeter of citadels surrounding Japan, protecting the island nation above, on and below the ground.

The Fortress: The Siege of Przemyśl and the Making of Europe's Bloodlands by Alexander Watson

Sci Fi Terrain Table Ideas, Wargaming Inspiration

Welcome to Transylvania: 17 must-visit architectural wonders

The Hidden Fortress - Wikipedia

The World's Most Improbable Green City

Tutorials/Building a metropolis – Minecraft Wiki

travel – ASIA453

Futuristic skyscrapers surrounded by wood mils

Secret bunkers and bases in your world? : r/worldbuilding

12 Architectural Marvels You Have To See In Macao

Top 18 Best Post Apocalyptic Anime Ever Created — DEWILDESALHAB武士