The McMillan Sand FiltrationÌýSite is a decommissioned water treatment plant, a twenty-five acres of green space and an abandoned and endangered historic landmark (Most Endangered Properties in 2000 and 2005). The tower-like sand bins and lawns were designed by Frederick Law Olmsted, Jr., landscape architect; Allen Hazen, engineer; and Charles Platt, architect. This wonderful infrastructure was a direct legacy of the City Beautiful Movement and part of the McMillan Plan to modernize the city back in 1902.

With some public attention, the McMillan Sand FiltrationÌýSite could become a viable open space with public amenities including a museum (with its catacomb-like underground cells), multi-purpose play fields, and iconic ruins, similar to the ones found at Northside Park in Denver, Colorado, and Gas Works Park in Seattle, Washington.Ìý