Food & Wine says: Porto's The Yeatman has one of the "World's Best Restaurant Views"

"The Yeatman has Douro River views and a modern Portuguese restaurant by the Michelin-starred chef Ricardo Costa, who creates dishes like roast capon with langoustines."

http://www.foodandwine.com/slideshows/worlds-best-restaurant-views?xid=slideshow_20140422_22252124#!slide=14