Aerial of Palace Duques de Braganca, UNESCO World Heritage Site, Guimaraes, Norte, Portugal, Europe

Aerial drone panoramic view of Parque dos Poetas, 25 hectare parkland with 60 statues in honour of 60 poets, Oeiras, Lisbon, Portugal, Europe

Well-behaved dogs tied to snow covered plant pots outside Kenwood House, Hampstead Heath, London, England, United Kingdom

Snow covered trees on Hampstead Heath, London, United Kingdom

View of the Sydney skyline from the Royal Botanical Gardens, Australia

Woman walks dog on winter's day across snow-covered Hampstead Heath, North London, England, United Kingdom

View of the Sydney skyline from the Royal Botanical Gardens, Australia

Man exercises in snow-covered Hampstead Heath, North London, England, United Kingdom

Tele-Michel, the Hamburg telecommunications or television tower, also called the Heinrich-Hertz-Turm, rising over parkland called "Planten un Blomen", Hamburg, Germany, Europe