Ajanta Caves India – dating from the 600–1000 CE period. It was estimated that 60 tonnes of rock were being removed every day during temple’s construction phase. And the temple workers laboured for 12 hours a day hauling at least 5 tonnes of rock out from the mountain per hour
squidgytree says
It’s all carved from the rock in a single piece. There are no additional lintels or decorations pieces added afterwards.