Considering the Hotel Chocolat Hakodate in Hakodate?
A VT member wrote the following comment about visiting Hakodate:
Goryoukaku Tower by sycyuen
There is a tower which you have to paid for going up. On the top, you will see a garden below surrounded by a star-shape fortress. However, you would be able to take the whole star into your shot unless you bring a fish ball lens.