More than 100 giant sky-high photographs mapping landscapes the length and breadth of Britain have gone on 24-hour display in Leeds.
The images of well-known landmarks and major UK cities are being shown at the city's Victoria Gardens alongside a 16-metre Ordnance Survey map, allowing visitors to explore the exact location of each one.
The Britain from the Air exhibition was created jointly by the Royal Geographical Society and street gallery pioneers Wecommunic8.
Dr Rita Gardner, director of the Royal Geographical Society, said: "Britain from the Air provides a fantastic opportunity to witness the beauty and diversity of Britain's natural and human landscapes and to explore the social, economic and environmental forces that shaped them."
Geographer and broadcaster Nick Crane will officially open the exhibition, which will run until early May. Mr Crane said: "The perfect twinning - Leeds and geography. Both central to Britain."
Councillor Lucinda Yeadon, Leeds City Council's executive member for culture, said: "This promises to be a wonderful insight into Britain's incredibly diverse and striking landscapes and offers a great opportunity to explore them on our own doorstep.
"Visitors will be able to study the beauty of the photos while also visualising where these amazing places are by walking around the map. We're proud to be hosting this enlightening exhibition in Leeds."
The exhibition is free to view and will be accessible 24 hours a day, allowing visitors to walk the length and breadth of the country over a 16-metre Ordnance Survey map.
After leaving Leeds, the exhibition is planned to run throughout 2015 and into 2016. It will visit four UK cities, spending 10 weeks at each location.