Hever Castle and gardens, Hever, Kent, England, United Kingdom, Europe

Monks with drums at a ceremony in Jakar Dzong, Castle of the White Bird, Jakar, Bumthang, Chokor Valley, Bhutan

Southern White Faced Owl (Ptilopsis grandti) flying in front of Bolton Castle, United Kingdom

Nagoya Castle, Nagoya, Honshu, Japan, Asia

Hohenschwangau Castle near Schwangau in Allgaeu, bird's eye perspective, Bavaria, Germany, Europe

The White Town of Zahara de la Sierra below a Moorish castle. Aerial view. Drone shot. Cádiz province, Andalusia, Spain, Europe

The hilltop White Town of Olvera with its La Encarnación church and Moorish castle. Aerial view. Drone shot. Cádiz province, Andalusia, Spain, Europe

The White Town of Gaucín below a Moorish fort. Aerial view. Drone shot. Málaga province, Andalusia, Spain, Europe

The White Town of Gaucín below a Moorish fort. Aerial view. Drone shot. Málaga province, Andalusia, Spain, Europe

Schloss Gluecksburg Castle, Gluecksburg, Flensburg Fjord, Baltic Sea, Schleswig-Holstein, Germany, Europe, PublicGround

A white swan (Cygnus) in a river with a colourful golden reflection of a treed hillside with a castle ruin and blue sky, Bernkastel, Germany