Halebidu and Belur temples were built during Rule of King Vishuvardhana (900 years ago around 1160AD) and his wife Shantaladevi.
Halebidu was the capital of Hoysala empire during 12th and 13th century.
They built these temples to support the Hindu tradition (under the guidance of Sri Ramanujacharya) as it was the time of Mughal rule invading india
These two temples are star shaped if you see it from aerial view
Hoysaleshwara and Kedareshwara temples are major attraction in Halebidu