Look at the streets of Barcelona - here you can see that many of them are closed to traffic.
It's impossible to capture all the local sights in a photo of the city of Barcelona, because in historical part of the city every building is unique.
Photos of Barcelona at night are often even more impressive, because the artful lighting makes the Gothic buildings look both majestic and mysterious. This is why photos of Barcelona at night are even more mesmerizing than those taken in daylight.