Fukutoku Shrine is a holy site where spiritual souls meet to pray. Take a few reflective moments yourself, or simply observe others as they worship.
You'll find this sacred place in the riverside district of Nihonbashimuromachi. If you're on a tight budget, your bank account will love that it's free. Throw in nearby sights like Tokyo Sky Tree, Tokyo Tower and Tokyo Imperial Palace and you're all set for a fun day out.