Scholars can’t seem to agree about the original function of the building that now houses the site’s museum , which is accessed via stairs east of the Tripylon. Some believe it was a harem for the king’s consorts and concubines, but others believe that it was a residence for visiting ambassadors (it has the same number of rooms as the number of subject nations). Restored in the 1930s, it now houses the museum and administrative offices. The museum contains a stone foundation tablet and a range of artefacts discovered during excavations: alabaster vessels, cedar wood, lances and arrow tips. Note the highly polished walls; almost every wall in Persepolis was finished in this expensive, labour-intensive fashion.