What is the fine-grained topic of the following text: Currently, it is a national historic site and a neighbourhood in the northwest end of Downtown Eastside, adjacent to Downtown Vancouver.Its historical boundaries were the waterfront, Columbia Street, Hastings Street, and Cambie Street, which were the borders of the 1870 townsite survey, the proper name and postal address of which was Granville, B.I.. Only return the topic.
Granville, B.I., a national historic site and neighbourhood in Downtown Eastside, Vancouver