Prague skyline at night with Prague Castle, St. Vitus Cathedral, Mala Strana and Charles Bridge, UNESCO World Heritage Site, Prague, Czech Republic, Europe

Mont St Michel, UNESCO World Heritage Site, holy island and peninsula at dusk, Normandy, France, Europe

Mont St. Michel, UNESCO World Heritage Site, holy island and peninsula, Normandy, France, Europe

Mont St. Michel, UNESCO World Heritage Site, holy island and peninsula at sunset, Normandy, France, Europe

Prague skyline at night with Charles Bridge, River Vltava, Prague Castle and St. Vitus Cathedral, UNESCO World Heritage Site, Prague, Czech Republic, Europe

Fort of San Carlos of the Cabin (Fortaleza de San Carlos de la Cabana (Fort of St. Charles), UNESCO World Heritage Site, Havana, Cuba, West Indies, Central America

Little fishing boat in front of Fort of San Carlos of the Cabin (Fortaleza de San Carlos de la Cabana (Fort of St. Charles), UNESCO World Heritage Site, Havana, Cuba, West Indies, Central America

Fort St. Charles, Basse-Terre, Guadeloupe, Lesser Antilles, West Indies, Caribbean, Central America