added start date to road

fixed and redid white house

added state park, edited road

fixed island data

added national mall, will fix tomorrow or soon

added some start dates

added another set of start dates

changed island from "natural wood" to island

added start date, added metro station data, created cemetary

added another start date

connected connecticut avenue (pre-dupont circle and after as a tunnel

added start date to washington channel

connected bridges to rail line

added more start dates

fixed white house

more bridges (and bridge data); locations on the southern most bridges may be incorrect

added a bridge and other bridges' data

added start dates to roads, modified island

changed start date

added islands