Engakuji Temple-Kamakura
Nearest station: Kita Kamakura.

This temple only has one building of interest. The long entrance path though is great and the grounds themselves are quite charming. Head towards the back area and enjoy the caves, ramshackle buildings and the extremely interesting, high and huge cemetery. It's also a very peaceful place if you can go there on a weekday.

Tons of information can be found here.