The entrance was preserved as late as the 16th century , but the keystone of the lintel had slid following the 1759 earthquakes ; a column of rough masonry was erected in the 1860s or '70s to support it . The earthquakes also damaged the area around the soffit 's famed inscription of an eagle , which was entirely covered by the keystone 's supporting column . Some historic Roman coins depict the structure of this temple along with Temple of Jupiter
1759 earthquakes
Near East earthquakes of 1759
Temple of Bacchus