Virupaksha Temple located in Hampi, Karnataka (UNESCO Site) built around 700 AC had a dark chamber built using 'PINHOLE' Technology.
Pinhole Technology was used 200 years before Arab Scholar Ibn Al-Haytham (945-1040) thought to hv mentioned Pinhole
However, Virupaksha Temple used this technology 2.5 centuries even before it first mentioned by Arabian scholar.
The Dark room with hole exact reverse image of main building.