The Holy Pashupatinath is a temple of the great Hindu God Shiva (Mahadev/Shankar/Shambhu/Bholanath/Nataraj/Nilkantha). Hindus believe Shiva is the most powerful God. So He is called Devon Ke Dev Mahadev (God of the Gods). According to Hindu Mythology, there are 4 eras which are Satyayug, Tretayug, Dwaparyug and Kaliyug. Today’s era is called Kaliyug which is thought to be the last era according to Hindu Mythology. And it is believed that Pashupatinath was originated in Satyayug which is also known as the time of truth.
Pashupatinath is the head amongst twelve Jyotirling. By the way, Jyotiring is object representing the Supreme Hindu God Shiva.
Pashupatinath Temple is located at the bank of the Holy River Bagmati opposite of Sleshmantak Forest which is also called Mrigasthali by native people. The temple was first built by Lichchhavi King Shupushpa in the 15th Century. However, there are various narrations about the origin of Pashupatinath. Let me make you know that the priest of the temple is always from South India and it is one of the most unique features of this temple. After the revolution of 2062/63 in Nepal, Maoists (communist) came to the Government, and they tried to replace the South Indian Priest by their native priest, but native people opposed that decision of the government. As a consequence, South Indian priests are still the priest of Pashupatinath. Hence, you can see the brotherhood between India and Nepal.
Indeed, the 2015’s devastating earthquake even could not scratch the main temple of Pashupatinath except its outer buildings, although it is very old temple.