Stairways and doorway, Isurumuniya, Anuradhapura, Sri Lanka.

Under an overhanging rock.

Early stage of cracking open a boulder.

 Holes were made in a large rock and special wooden pegs were inserted into these holes and tightened. When the wooden pegs were soaked with water they swelled up and cracked the boulder open. This technique was used about 2000 years ago. There were no electric drills nor dynamite available those days.

Stone-stairway.

A decorative door-way made from granite.