Berlin's Brandenburg Gate, Paris' Eiffel Tower, Rome's Vatican and Barcelona's Sagrada Família have joined the WWF's Earth Hour in switching off their lights for an hour to raise awareness of climate change and energy use.
More top news
An undercover investigation claims England manager Sam Allardyce offered advice on how to "get around" FA rules on player transfers.
The four artworks shortlisted for this year's Turner Prize include a huge golden sculpture of buttocks, and more than £20,000 in pennies.
A proposal to sell ivory stockpiles and return profits to communities that sustain elephants has been defeated at a major global conference.