What makes a city a capital city? The city or town that functions as the seat of government and administrative centre of a country or region is the capital city.
Israel refers to Jerusalem as the country's capital, and seats its government (Knesset) in that city. But the international community does not recognize Jerusalem as Israel's capital, and the city hosts no foreign embassies. Most countries, as well as the United Nations, recognize nearby Tel Aviv.
The Palestinian National Authority also claims Jerusalem as the capital for their future Palestinian state; but currently the de facto seat of the internationally-recognized Palestinian government is in Ramallah, while the seat of the Hamas-led government is in Gaza City.
(left) In 2011 Israel issued a set of 6 stamps about butterflies of Israel. This one pictures the Common Blue.
(right) Dating back to ancient times Jews have used an Etrog box during Sukkot, the Festival of Booths, to store the Etrog fruit, an oval shaped citron fruit.