"Well-known yellow pavillion"

http://uwepetercom.blogspot.com/2015/12/well-known-yellow-pavillion.html Foz do Douro | Porto | Portugal | 2015-12-06
On the seafront of Foz do Douro there is a yellow well-known building: The Pavilion. Unfortunately I don't know why it is there or which function it had or has. But it gives some nice views for a photographer like me.