Honseiji temple is beautiful little temple near the Kyousumi gardens.
If you like visiting traditional temples this place is definitely worth a visit.
Address
Koto Ward Kiyosumi 3-4-23
(江東区清澄3-4-23)
Rakanzenji
‘Rakanzenji’ is a temple which is situated right in front of Nishi Ojima station.
From afar it looks like a small castle and since its so close to the station its worth a visit.