Answer to edition 661
Even though there were few instantly recognisable features of this city visible the O2 Arena (aka The Millennium Dome) is easily recognised across the river. That means the city is London and the river is the Thames.

Last week's winners
Congratulations to those who identified the distorted city from Where in the World (661) as London: Elizabeth (@Elizabcullen), Dee (@DeeCornes), Tim (@timofnewbury), Jackie (@jackiesjourneys) and Atul (@pixodentist).
Well done everyone.
This week's "Where in the World..."
A tricky one this week! It is not a skyline but a single unique building that you can visit in the city to be identified. Be careful not to mistakenly identify the building as it is all to easy to do. Good luck.

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