The river here (Arpašay River) is the international border between Turkey and Armenia. All of the land at right is Armenian. At left is Turkey. Taken within the historic Armenian city of Ani, the former Armenian capital, which used to house 100,000 people before the Mongol invasions of 1239. The subsequent invasions by Russia & Turkey squabbling over ownership of this section of the Caucasus, and the Armenian genocide in the early 20th century, (which the Turkish Government flatly refuses to even discuss), have ensured this city remains a ghost town, visited only by tourists and wandering cows. Relations between Armenia & Turkey remain very frosty, and the border here remains closed indefinitely.
Good information on Ani here: http://whc.unesco.org/en/tentativelists/5725/
And from Wiki on the 1915 genocide:
"The Armenian Genocide (Armenian: Հայոց Ցեղասպանություն, [hɑˈjɔtsʰ tsʰɛʁɑspɑnuˈtʰjun]), also known as the Armenian Holocaust, the Armenian Massacres and, traditionally among Armenians, as the Great Crime (Armenian: Մեծ Եղեռն, [mɛts jɛˈʁɛrn]; English transliteration: Medz Yeghern [Medz/Great + Yeghern/Crime]) was the Ottoman government's systematic extermination of its minority Armenian subjects from their historic homeland in the territory constituting the present-day Republic of Turkey. It took place during and after World War I and was implemented in two phases: the wholesale killing of the able-bodied male population through massacre and forced labor, and the deportation of women, children, the elderly and infirm on death marches to the Syrian Desert. The total number of people killed as a result has been estimated at between 1 and 1.5 million."