Looking down on the WW1 Tyne Cot cemetery with Passchendaele village beyond, Belgium

Hiroshima Peace Memorial Park, in memory of the victims of the nuclear attack on August 6, 1945. It is designed by the Japanese architect Kenzo Tange, Hirishima, Japan

Hiroshima Peace Memorial Park, in memory of the victims of the nuclear attack on August 6, 1945. It is designed by the Japanese architect Kenzo Tange, Hirishima, Japan

The eternal flame of the peace memorial, Flame of Peace, Hiroshima, Japan,

View at night of the Korean War Veteren's Memorial, Washington, D.C., United States of America

View of the Lincoln Memorial at night, Washington, D.C., United States of America

Lower Manhattan skyscrapers including One World Trade Center from across the East River at night, with light beams from the Tribute in Light 9/11 Memorial, New York City, New York, United States of America, North America

View at night of the fountains at the U.S. National World War II Memorial, Washington, D.C., United States of America

Liturgy commemorating victims of the 1932-1933 Holodomor (Famine) and Russian-Ukrainian war started 2014, Madeleine Basilica, Paris, France

The Hiroshima Victims Memorial Cenotaph in the Pond of Peace, Hiroshima Peace Memorial, UNESCO, Hiroshima, Honshu, Japan

View of the Lincoln Memorial, Washington, D.C., United States of America

Lower Manhattan skyscrapers including One World Trade Center from across the East River at night, with light beams from the Tribute in Light 9/11 Memorial, New York City, New York, United States of America, North America

The cathedral of Domkirkjan, lit by the midnight sun, Reykjavik, Iceland, Polar Regions

World Trade Center Memorial, Tribute in Light, USA, New York City