Estonia, Tallinn, Orthodox Cathedral of Alexander Nevsky, Toompea.

Estonia, Tallinn, Orthodox Cathedral of Alexander Nevsky, Toompea.

Estonia, Tallinn, Orthodox Cathedral of Alexander Nevsky, Toompea.

Russia, St Petersburg, Church on Spilled Blood, also Church of the Saviour on Spilled Blood.

Italy, Tuscany, Florence, Florence Cathedral, Cattedrale Di Santa Maria Del Fiore, Piazza Del Duomo.

Italy, Tuscany, Florence, Florence Cathedral, Cattedrale Di Santa Maria Del Fiore, Giottos tower.

Greece, Chios, The Turkish Baths.

Uzbekistan, Samarkand, A dome of Bibi Khanym Mosque, also known as Bibi Khanum Mosque.

Uzbekistan, Samarkand, A dome of Sher Dor Madrasah, also known as Shir Dor Madrasah, Registan Square.

Uzbekistan, Bukhara, Chor Minor Madrasah, also known as Chor Minar Madrasah.

Uzbekistan, Bukhara, Domed roof of Toqi Zargaron, also known as Toki Zargaron, jewellers trading market.

Uzbekistan, Bukhara, A dome of Mir I Arab Madrasah, Poi Kalon.

Ireland, County Wexford, New Ross, The Emigrant Flame adjacent to the Dunbrody Famine Ship, the Emigrant Flame burns perpetually as a permanent flame of hope and inspiration to all Irish emigrants whe...

Ireland, County Wexford, New Ross, The Emigrant Flame adjacent to the Dunbrody Famine Ship, the Emigrant Flame burns perpetually as a permanent flame of hope and inspiration to all Irish emigrants whe...

Italy, Lazio, Rome, Piazza di Trevi, Baroque Trevi Fountain or Fontana di Trevi showing statue of the Greek God Oceanus with his chariot being pulled by sea horses.

Italy, Lazio, Rome, Piazza di Trevi, Baroque Trevi Fountain or Fontana di Trevi showing statue of the Greek God Oceanus with his chariot being pulled by sea horses.

Italy, Lazio, Rome, Piazza di Trevi, Baroque Trevi Fountain or Fontana di Trevi begun by Nicola Salvi in 1732 and completed by various artists in 1762.

Italy, Lazio, Rome, View of the Roman Forum from Capitoline Hill in evening light with the Colosseum in the background.

Italy, Lazio, Rome, View of the Roman Forum from Capitoline Hill in evening light with the Colosseum in the background.

Italy, Lazio, Rome, Il Vittoriano, eternal flame.

Italy, Lazio, Rome, Il Vittoriano, eternal flame.

Israel, Jerusalem, Yad Vashem Holocaust memorial and museum interior with eternal flame.

Italy, Rome, View of the Roman Forum from Capitoline Hill with ruins of the Arch of Septimus Severus and the Temple of Saturn prominent.

Uzbekistan, Tashkent, World War II Memorial, Independence Square, Mustakillik Maydoni.