Rabelo Boats at the Douro River in Porto, Portugal

Traditional Rabelo boats rest along the serene waters of the Douro River under the majestic Dom Luis I Bridge in Porto, Portugal. These iconic vessels are known for transporting Port wine barrels from the vineyards to the city's historic cellars. Colorful buildings line the riverbank against a backdrop of lush hillsides dotted with greenery, encapsulating the charm of this UNESCO World Heritage site.