The massive ruined temple south of the Acropolis was the largest in Greece and one of the greatest in the ancient world, occupying a site that had been considered sacred for centuries before the first column was raised. The 15 remaining columns, their capitals still carrying their heavy stone beams, give a sense of the original scale — each column stands 17 metres high, and the temple originally had 104 of them.
The site is part of Athens's broad southern archaeological zone, which runs from here back through the Panathenaic Stadium to the Acropolis and beyond. Hadrian's Arch, the ornamental gateway Hadrian built in 131 AD to mark the boundary between the old Greek city and his new Roman extension, stands just outside the site entrance and frames a view of the temple behind it.
The combined Acropolis ticket covers entry.