The famous rock-cut temple of Kailasa is located at Ellora. Ellora is a UNESCO World Heritage site in Maharashtra, India. It is famous for its magnificent rock-cut caves which showcase a fusion of Hindu, Buddhist, and Jain architecture. The Kailasa temple is one of the most impressive structures at Ellora. It was carved out of a single giant rock in the 8th century AD and is dedicated to Lord Shiva. The temple is known for its intricate sculptures, detailed carvings, and grand architecture. It is a popular pilgrimage site and attracts tourists from all over the world. So, the correct answer is option 4, Ellora.