Mexico, Bajio, Zacatecas, Colourful housing across hillside at night.

India, Uttarakhand, Hardiwar, Pilgrims holding up burning offering during Kumbh Mela, Indias biggest religious festival where many different traditions of Hinduism come together to bathe in the Ganges...

Ireland, Dublin, St James Gate, Gravity Bar at the top of the Guinness Storehouse visitor attraction.

Greece, Attica, Athens, View towards the Acropolis illuminated at dusk.

Greece, Attica, Athens, View towards the Acropolis on hilltop above Athens illuminated at dusk.

Hungary, Budapest, View along the River Danube at night with the Parliament building on the left, the Chain Bridge and the Royal Palace on the right all illuminated brightly.

Hungary, Budapest, View along the River Danube at night with the Parliament building on the left, the Chain Bridge and the Royal Palace on the right all illuminated brightly.

Hungary, Budapest, View along the River Danube at night with the Parliament building on the left, the Chain Bridge and the Royal Palace on the right all illuminated brightly.

Hungary, Budapest, View along the River Danube at night with the Parliament building on the left, the Chain Bridge and the Royal Palace on the right all illuminated brightly.

USA, New York, New York City, Revolving Globe in the News building.

Slovakia, Bratislava, Novy Most New Bridge topped with restaurant over the River Danube with views towards Petrzalka tower blocks at night with light trails from passing traffic below.

Cuba, Havana, Plaza de la Catedral. Cathedral facade and bell tower illuminated at night with people at outside cafe tables in plaza in the foreground.

Animals, Birds, A female Purple-throated Mountain-gem Hummingbird, Lamporis calolaemus, feeds on the nectar of a torpical Rubiaceae flower in Costa Rica.

Animals, Birds, A Rufous-tailed Hummingbird, Amazilia tzacatl, feeds on a tropical blueberry flower in Costa Rica.

Animals, Birds, A female Rufous-tailed Hummingbird, Amazilia tzacatl, sits on her nest in Tortuguero National Park in Costa Rica.

Animals, Birds, A female Rufous-tailed Hummingbird, Amazilia tzacatl, feeds one of her babies in her nest in Tortuguero National Park in Costa Rica.

Animals, Birds, A female Rufous-tailed Hummingbird, Amazilia tzacatl, on her nest in Tortuguero National Park in Costa Rica.

Animals, Birds, A male White-bellied Mountain-gem Hummingbird, Lampornis hemileucus, feeds on a tropical Lobster Claw Heliconia in Costa Rica.

Animals, Birds, A male White-bellied Mountain-gem Hummingbird, Lampornis hemileucus, feeds on a tropical blueberry flower in Costa Rica. Photographed in high key lighting for artistic effect.

Animals, Birds, A male Steely-vented Hummingbird, Amazilia saucerrottei, feeds on the nector of a Porterweed flower near the Arenal Volcano in Costa Rica.

Animals, Birds, A male Steely-vented Hummingbird, Amazilia saucerrottei, feeds on the nector of a Porterweed flower near the Arenal Volcano in Costa Rica.

Animals, Birds, A male Steely-vented Hummingbird, Amazilia saucerrottei, perches a Porterweed flower near the Arenal Volcano in Costa Rica.

Animals, Birds, The White-necked Jacobin, Florisuga mellivora, is found from Mexico down to Peru, Bolivia, and Brazil.

Animals, Birds, A female White-bellied Mountain-gem Hummingbird, Lampornis hemileucus, perches in a thicket of Porterweed in the cloud forest of Costa Rica.