The Guyaju Caves, also known as the Yanqing Ancient Cliff House, is a rock-cut complex of honeycomb caves carved into the slopes of the Tianhuang Mountain in the Yanging District of China.
Kropfenstein Castle is a ruined höhenburg (hillfort) type castle, located on the edge of a vertically sloping rock face in the municipality of Waltensburg/Vuorz, Switzerland.
Ras il-Wardija, corrupted from the word ‘guardia’ which means ‘watch’ is a Punic Sanctuary carved into a promontory on the island of Gozo in the Maltese archipelago.
Mystras, called the “wonder of Morea” was the capital of the Byzantine Despotate of Morea in the 14th and 15th centuries AD, located on Mount Taygetos in the Peloponnese region of Greece.