Five Lingas

Though there are innumerable Shiva Lingas in Kashi, five are considered most sacred:

1. Vishwanatha 
2. Omkareshwara 
3. Krttivaseshwara
4. Kapardishwara and 
5. Madhyameshwara  

1. Sri Omkareshwara is also called Panchayataneshwara as this Linga represents the Samashti or totality of the Panchayatana - Aditya, Ambika, Ganesha, Vishnu and Sadashiva. Worshipping this Linga grants one the merit of a lifetime of Panchayatana Puja.
2. Lord destroyed Gajasura, wore his skin as cloth and came to be known as Krttivaseshwara in Varanasi. One who worships Krttivaseshwara attains Kaivalya even while living in a physical body. One attains Ashta Siddhis by worshipping this Linga and ascends to Kailasa. The secret place in Kashi which houses this sacred Linga is known only to advanced Yogis.
3. Kapardishwara Linga is also called Papanasheshwara as mere remembrance of this Linga destroys one's sins. By taking bath in Pishacha Mochana Kunda and worshipping Kapardishwara, even the greatest of sins like Brahma Hatya Dosha are destroyed. Kapardishwara is considered as important as Sri Vishwanatha in Kashi.
4. Originally, the city of Kashi has been described as Panchakroshapura and the Linga situated in the centre of the city is called Madhyameshwara. Lord Shiva is ever present in this Linga along with Sridevi and Rudra Ganas. Krishna is said to have worshipped Lord Shiva at this place. Taking a bath in Mandakini and worshipping Sri Madhyeshwara grants one the merit of one hundred Maha Yagnas.
5. Traditionally, the city of Kashi is said to begin with Madhyameshwara and end with the shrine of Dehali Vinayaka.