Kashi Vishwanath Temple
Kashi Viswnath temple situated in Varanashi also known as Banaras, kashi In 
Shiva The Supreme: Shiva Linga
The structure of the cosmic reality, according to ancient Hindu thought, consists of the three fundamental stages called
Generation ( Evolution ) ( Shrishthi ) who generate the Universe
Operation ( Existence ) ( Sthiti ) who operates the Universe
Destroy ( Involution ) ( Samhara ) who destroys the Universe
That occurs in a cyclic process of infinity. Each one of the forms is controlled by a God, named Brahma (the creator), Vishnu (the Operater) and Shiva (the destroyer); these three Gods are called the Trinity. Shiva, being the last to complete the cycle from where the new cycle starts, is known as Mahadeo, the Supreme Divinity. The iconographic form of the Shiva, the Linga represents the unity of these three states of cosmos .The Linga consists of the three parts. The first is a square base of three-layers at the bottom showing the three mythical (realms) lokas, symbolizing Generation,the place of Brahma. The second is an octagonal round form in the middle showing the eight directions, symbolizing existence (operation)the place of Vishnu; and third is a cylinder at the top with a spherical end, symbolizing involution or Destroying of the cosmic cycle,the place of Shiva. This icon shows the supreme state of integrity, the ultimate form of Shiva linga itself is a symbol of cosmic mandala. As Sadasiva (eternal reality) Shiva is represented as linga, standing also for ‘total knowledge’. As Rudra, the destroyer, his consort is Kali. As Bhairava, the terrible destroyer, his consort is Durga. As a jovial god living in the Himalaya . As possessor of all forms of divine power Shiva rooms at the bottom of everything that is moving, that is how he is called Ishvara, derived from I-cara, i.e. I the centre, and cara, the rhythm of movement.
History
A Shiva temple has been mentioned in Puranas including Kashi Khanda (section) of Skanda Purana.In 490 AD , the Kashi Vishwanath Temple was built. In 11th Century AD, Hari Chandra constructed a temple. Muhammad Ghori destroyed it along with other temples of Varanasi during his raid in 1194. Reconstruction of the temple started soon after. This was demolished by Qutb-ud-din Aibak. After Aibak’s death the temple was again rebuilt with the permission of his successor Iltutmish. In 1351 it was destroyed again by Firuz Shah Tughlaq, who also had Hindu holy works translated in Persian. The temple was rebuilt in 1585 by Todar Mal, the Revenue Minister of Akbar’s Court. Aurangzeb again demolished in 1669 and constructed Gyanvapi Mosque, which still exists alongside of the temple. Traces of the old temple can be seen behind the mosque. The current temple was built by Ahilya Bai Holkar, the Hindu Maratha queen of Malwa kingdom, in 1780. The temple spire and dome are plated with 1000 kg of gold donated by the Sikh Maharaja Ranjit Singh of Punjab, in 1835.
Kashi Vishwanath Temple is one of the most famous Hindu temple of Lord Shiva and is located in Benaras, the Holiest existing Place of Hindus, where at least once in life a Hindu is expected to do(Yatra) pilgrimage, and if possible, also pour the remains (ashes) of cremated ancestors here on the River Gange. It is in the state of Uttar Pradesh, India. The temple stands on the western bank of the holy river Ganges,and is one of the twelve Jyotirlingas, the holiest of Shiva temples. The main deity is known by the name Vishwanatha or Vishweshwara meaning the Ruler of the universe. The temple town that claims to be the oldest living city in the world, having 3500 years of documented history,is also called Kashi and hence the temple is popularly called as Kashi Vishwanath Temple. Due to this 15.5m high golden spire(golden cover bulit by Maharaja Ranjit Singh-ruler of Lahore), the temple is sometimes called as the Golden Temple.
Displaying a gesture of impeccable harmony, the Kashi Vishwanath Temple and a Mosque in Varanasi co-exists in the same premises. The tough security at the temple entrance have not been even close to affect the spirit of devotees to visit their Lord.
Importance of the temple
The temple is widely recognized as one of the most important places of worship in Hindu religion and most of the leading Hindu saints, including Adi Sankaracharya, Ramakrishna Paramhansa, Swami Vivekananda, Goswami Tulsidas, Swami Dayananda Saraswati, Gurunanak have visited this site. A visit to the temple and a bath in the river Ganges is one of many methods believed to lead one on a path to Moksha (liberation). Thus, people from all over the nation, try to visit the place at least once in their lifetime. There is also a tradition that one should give up at least one desire after a pilgrimage the temple, and the pilgrimage would also include a visit to the temple at Rameswaram in South India, where people take the water samples of the Ganges to perform prayer at Rameswaram temple and bring back the sand from near that temple to Kashi.
The Temple Timings
The Vishwanath temple opens daily at 2.30 A.M. for Mangala Aarti and between 3 to 4 A.M. ticket holders are permitted to join. The timing of general Darshan is from 4 to 11 A.M. The timing for midday Bhog Aarti is from 11.30 to 12 A.M. Between 12 noon to 7 P.M., free to genral Darshan. From 7 to 8.30 P.M. the Sapta Rishi Aarati is held after which Darshan is possible again till 9 P.M. At 9 P.M. the Shringar/Bhog Aarati starts and after that Darshan can be only from outside. Shayana Aarti starts at 10.30 P.M. and the temple closes at 11 P.M. Most of the offerings at the Kashi Vishwanath temple are given to poor.