Fortress of Frederick II of Swabia, Castel del Monte, Andria, Western Murge, Barletta, Apulia, Italy, Europe

Mural with portrait of Jean Moulin, 1899-1943, hero of the French Resistance during World War II, with the towers of the cathedral in the background, City of Chartres, Eure-et-Loir department, Centre-Val-de-Loire region, France, Europe

The Hassan II Mosque at sunset, Casablanca, Casablanca-Settat Region, Morocco, North Africa, Africa

Orford Castle, built by King Henry II between 1165 and 1173 to consolidate royal power in the region, Suffolk, England, United Kingdom, Europe

Samson fountain at Premysl Otakar II Square, Ceske Budejovice, South Bohemian Region, Czech Republic (Czechia), Europe

The Hassan II Mosque at sunset, Casablanca, Casablanca-Settat Region, Morocco, North Africa, Africa

Black Tower of Ceske Budejovice and Namesti Premysla Otakara II. at twilight, South Bohemian Region, Czech Republic

Black Tower of Ceske Budejovice and Namesti Premysla Otakara II. at twilight, South Bohemian Region, Czech Republic

The Commando Memorial, a World War II memorial, Fort William area, Highland region, Scotland, United Kingdom, Europe

Surfers and the remains of World War II blockhouses on Le Pin Sec beach in the Aquitaine region of southwestern France, Europe

Sunset Lagoon Nebula

Lagoon Nebula, M8, NGC 6523

Galleria Vittorio Emanuele II, Metropolitan City of Milan, Metropolitan Region, Lombardy, Italy, Europe

Piazza del Duomo with the cathedral and the triumphal arch of the Galleria Vittorio Emanuele II, Milan Cathedral, Metropolitan City of Milan, Metropolitan Region, Lombardy, Italy, Europe

Piazza del Duomo with the cathedral and Galleria Vittorio Emanuele II, Milan Cathedral, Metropolitan City of Milan, Metropolitan Region, Lombardy, Italy, Europe

Aerial view, bunker, globe, office building, conversion, World War II bunker, concrete building, Rauendahl, Hattingen, Ruhrgebiet region, North Rhine-Westphalia, Germany, Europe

American flag, Normandy American Cemetery and Memorial above Omaha Beach, site of the landing of the Allied invasion forces on D-Day 6 June 1944, Second World War, Calvados, Region Basse-Normandie, Normandy, France, Europe

Graves at the Normandy American Cemetery and Memorial above Omaha Beach, site of the landing of the Allied invasion forces on D-Day 6 June 1944, Second World War, Calvados, Region Basse-Normandie, Normandy, France, Europe

Graves at the Normandy American Cemetery and Memorial above Omaha Beach, site of the landing of the Allied invasion forces on D-Day 6 June 1944, Second World War, Calvados, Region Basse-Normandie, Normandy, France, Europe

Graves at the Normandy American Cemetery and Memorial above Omaha Beach, site of the landing of the Allied invasion forces on D-Day 6 June 1944, Second World War, Calvados, Region Basse-Normandie, Normandy, France, Europe

American adolescents visiting the Normandy American Cemetery and Memorial above Omaha Beach, site of the landing of the Allied invasion forces on D-Day 6 June 1944, Second World War, Calvados, Region Basse-Normandie, Normandy, France, Europe

Normandy American Cemetery and Memorial above Omaha Beach, site of the landing of the Allied invasion forces on D-Day 6 June 1944, Second World War, Calvados, Region Basse-Normandie, Normandy, France, Europe

Normandy American Cemetery and Memorial above Omaha Beach, site of the landing of the Allied invasion forces on D-Day 6 June 1944, Second World War, Calvados, Region Basse-Normandie, Normandy, France, Europe

Graves at the Normandy American Cemetery and Memorial above Omaha Beach, site of the landing of the Allied invasion forces on D-Day 6 June 1944, Second World War, Calvados, Region Basse-Normandie, Normandy, France, Europe

Water basin in front of the Normandy American Cemetery and Memorial above Omaha Beach, site of the landing of the Allied invasion forces on D-Day 6 June 1944, Second World War, Calvados, Region Basse-Normandie, Normandy, France, Europe

Graves at the Normandy American Cemetery and Memorial above Omaha Beach, site of the landing of the Allied invasion forces on D-Day 6 June 1944, Second World War, Calvados, Region Basse-Normandie, Normandy, France, Europe

Quadriga with Victoria, the goddess of victory, Monument of Victor Emmanuel II in the evening, Rome, Lazio region, Italy, Europe

Graves at the Normandy American Cemetery and Memorial above Omaha Beach, site of the landing of the Allied invasion forces on D-Day 6 June 1944, Second World War, Calvados, Region Basse-Normandie, Normandy, France, Europe

Windjammer Tenacious, motoryachts Skat, Atlantis II and Lady Moura at Port Hercule, Monaco, Cote d'Azur, Mediterranean, Europe

Cruiseship Queen Elizabeth II in Geiranger, Geiranger fjord, UNESCO World Heritage Site, Norway, Scandinavia, Europe

The Basilica of Sacre Coeur et Notre Dame de Lourdes and the Memorial Interallie memorial for the victims of the World Wars, Cointe, Liege, Wallonia or Walloon Region, Belgium, Europe

Second World War bunker ruins, Pointe du Hoc, Calvados, Region Basse-Normandie, Normandy, France, Europe

Hassan II Mosque, Casablanca, Grand Casablanca region, western Morocco, Morocco, North Africa, Africa