anastylosis

250px|thumb|Celsus Library in [[Ephesus (Turkey), anastylosis carried out 1970–1978]]

Anastylosis (from the Ancient Greek: ; , = "again", and = "to erect [a stela or building]") is an architectural conservation term for a reconstruction technique whereby a ruined building or monument is re-erected using the original architectural elements to the greatest degree possible, combined with modern materials if necessary. With the Venice Charter, it was established that the latter should be unobtrusive while clearly recognizable as replacement materials. It is also sometimes used to refer to a similar technique for restoring broken pottery and other small objects.