Slovenia, Ljubljana, Vista of the city from Ljubljana Castle's Watchtower.

Ireland, County Donegal, Inishowen Peninsula, Malin Head, Napoleonic watchtower located on the area called Banba's Crown which is the most northerly point in Ireland.

Estonia, Tallinn, Pikk Hermann Tower, part of Toompea Castle, and Estonian Parliament building.

Estonia, Tallinn, Pikk Hermann Tower, part of Toompea Castle, and Estonian Parliament building.

Estonia, Tallinn, Towers in the Old Town.

Germany, Mecklenburg-Vorpommern, Rostock, Stone Gate.

Italy, Campania, Naples, Castel Nuovo, also known as Maschio Angioino.

Italy, Campania, Naples, Castel Nuovo, also known as Maschio Angioino.

USA, New York City, Manhattan, Belvedere Castle, and people sunbathing, Central Park.

Uzbekistan, Bukhara, Ulugh Beg Minaret and Madrasah at Memorial Complex of Al Gijduvani, Gijduvan.

Uzbekistan, Bukhara, Kalon Minaret, Kalon Mosque, also known as Kalyan Mosque, Poi Kalon.

Uzbekistan, Bukhara, Pavilion near the Harem, Summer Residential Palace, Sitorai Mohi Hossa Folk Art Museum.