Urban farm right in the center of Tokyo. Visitors can see the process of how vegetables grow and also eat the vegetables at the restaurant next door to this farm. "This is a place where agriculture and people become close.
Raised beds, collecting rainwater as well. - perhaps tiered beds can have a French drain at the end that catches excess water run off from the rain. It would be a larger area to collect rain water and would only be extra If the other plants were all