In the observatory, archaeologists found a sloping stone sundial. The instrument, also known as a sloping shadow clock, was ...

The inventions of the hemispherium and the hemicyclium are attributed to Berosus (356-323 BCE), a Chaldean priest and astronomer who brought these types of sundials to Greece. Both dials use the shape ...

This astronomical observatory houses the iconic Samrat Yantra, the largest stone sundial in the world. Towering at an impressive 27 meters, the structure was designed to measure time down to an ...