Architects Christian Hansen and Eduard Schaubert excavated the temple in the 1830s. The building had been totally dismantled in the 17th century and the stone built into the Turkish wall that surrounded the hill. A primitive anastylosis was carried out in 1836 when the temple was re-erected from remaining parts. A third restoration was completed in Summer 2010.[1] The main structure, stylobate and columns are largely intact, minus the roof and most of the tympanae. Fragments of the sculpted frieze are exhibited in the Acropolis Museum and the British Museum; copies of these are fixed in their place on the temple.