Carderock Springs, the mid-century modern community in Bethesda built in the 1960s by pioneering developer Edmund Bennett and designed by Arthur Keyes, Francis Donald Lethbridge and David Condon, was named to the National Register of Historic Places in December after a four-year effort by residents and county officials. Charles Goodman’s Rock Creek Woods, Hammond Wood and five homes on Takoma Avenue are other the MCM communities in Montgomery County on the National Register. Read more about Carderock’s designation here.