What is martand sun temple?

Here's some information about the Martand Sun Temple in markdown format, with links to hypothetical "wikiwhat.page" URLs:

The Martand Sun Temple is a now-ruined Kashmiri Hindu temple dedicated to Surya (the chief solar deity) and built during the 8th century CE. It is located near the city of Anantnag in the Kashmir Valley of Jammu and Kashmir, India.