Jyotirlinga are set of 12 Shiva Temples spread all over India and considered holiest for Shiva.. Maximum output with some simple thoughts...
Kashi Vishwanath Temple is one of the most famous Hindu temples and is dedicated to Lord Shiva. It is located in Varanasi, Uttar Pradesh, India, the holiest existing place of Hindus. The temple stands on the western bank of the holy river Ganga, and is one of the twelve Jyotirlingas, the holiest of Shiva temples. The main deity is known by the name Vishwanatha or Vishvanatha; Vishweshwara or Vishveshvara meaning Ruler of The Universe. The Temple City which claims to be 'The Oldest Living City in the World', with 3500 years of documented history,is also called Kashi and hence the temple is popularly called Kashi Vishwanath Temple.
The Temple has been referred to in Hindu Scriptures for a very long time and as a central part of worship in the Shaiva philosophy. It has been destroyed and re constructed a number of times in the history. The last structure was demolished by Aurganzeb, who constructed the Gyanvapi Mosque on its site.The current structure was built on an adjacent site by the Maratha monarch, Ahilya Bai Holkar of Indore in 1780.