10 of the best European cities for art nouveau

Art nouveau swept across Europe around the turn of the 20th century and was embraced by architects, graphic and interior designers and artists. Here are the best cities in Europe to get a flavour of its most impressive buildings

Readers’ travel photography competition: March

Our monthly photo competitions have no theme this year – we just want your best travel shots. Enter your image via GuardianWitness and you could win a seven-night ‘Secret Fjords’ self-drive holiday to Iceland for two with Discover the World

Guardian Travel’s year in Instagram: 2015

Our Instagram feed @guardiantravelsnaps focuses on mobile photography from around the world. More than 120,000 images have been shared with us this year, and this is a small selection of the most memorable