Tzistarakis Mosque, Athens

Sitting high in the busy Monastiraki square, this mosque cannot be missed. Built in 1759 by then Turkish civil governor of Athens, it has one large dome and two smaller ones, demonstrating a different edge to the typical Ancient Greek architecture in the area. While no longer operating as a mosque, it hosts an exhibition inside.

Go up the steps and view the interesting collection of ceramics, sculpture and decorative arts from the Kyriazopoulos family's collection. Though rather small, it includes rare and interesting pieces from many regions of Greece, along with selected works by artists from the Center for the Study of Traditional Pottery. All in all, worth visiting if only to get some respite from the hustle and bustle of outside Monastiraki.

On a side note, the limestone used to build the structure was taken from the columns of the temple of the Olympian Zeus. The minaret of the mosque was destroyed during the Greek revolution in 1821.