High on the edge of the Imperial Palace moat, this cemetery holds the remains of thousands of unknown soldiers and is famous for its springtime cherry blossoms. The adjacent Chidorigafuchi Boathouse rents out rowboats and pedal boats. Only a small part of the Palace's outer moat is accessible, but a walk here makes for a refreshing 30 minutes. The entrance to the garden is near Yasukuni Jinja.
2 Sanban-cho, Chiyoda-ku, Tokyo, 102-0075, Japan