I took this on my last night in Prague. I went out for what I thought was a couple of hours, it turned out I was out for 5 hours just wandering and taking photos. I discovered this viewpoint in a park by the river up from Charles Bridge. This photo is most interesting viewed at full size where you can scroll around the details of the skyline. On the right you see St. Vitus Cathedral jutting above the Prague Castle. Moving to the left the dome of the Church of St. Nicholas is visible with the gateway to Charles Bridge leading into the bridge itself to the left. Up on the hill opposite the castle can see an Eiffel Tower like structure. You could probably take photos all night long in Prague on an overcast night as the lights from the city give the clouds a yellow glow.