Kedarnath in the Himalayas is an ancient shrine of pilgrimage .
Visited by Adi Shankara , it is more than 1400 years old and one of the 12 Jyothir linga temples dedicated to Shiva .
Closed six months a year during winter , it is reachable only after a 15 km trek by foot ( or pony) through the beautiful Himalayas .
It is one of the Char Dham ( four ) pilgrimage spots of Uttaranchal .
It is a beautiful structure built entirely of stone .
