The original Benaki Museum now has several branches, and this one has Athens's only collection of Islamic art. This is a gem and, sadly, it's not uncommon to be the only visitor in its 19th-century neoclassical building, located on a gritty side street not far from Monastiraki Square. Each floor displays artifacts from a different period, ranging from the 14th century to the present. Extensive labels (Greek and English) put things in their historical context. Highlights include two reconstructed living rooms from the Ottoman times and a 17th-century reception room from a Cairo mansion—plus lots of glorious pottery, tiles, carpets, scimitars, and embroideries. There is a small café that may not be open; but even if it's closed, you can sit and read and enjoy the view over Athens. Allow at least an hour for your visit.