(Portland, OR) -- Portlanders can get a sneak peak at the newly restored Washington Park Reservoir from 10 a.m. to 4 p.m. on Saturday. On top of the massive reservoir are two reflecting pools, a wildlife habitat area, public walking paths, and restored historic features. There will be tours and other activities for families. The underground 12-million-gallon reservoir replaces the original that was built in 1894.