Porto - The alluring district of Ribeira is made up of medieval streets and seedy alleyways. It is a crumbling but fascinating place, ending at a riverfront square ("Praça da Ribeira"). Wth photogenic traditional boats floating at the quayside overlooked by colorful ancient houses, this is the most picturesque spot in the city and the place everyone loves -- UNESCO did too, and declared it a World Heritage Site.
Cuevas del Drach are caves located next to city of Porto Cristo in Mallorca, Spain. It contains one of the largest underground lakes in the world. Once you reach the underground lake (Lake Martel), you can see musicians on the boat playing classical music.
In the seaside city of Porto, Portugal, beautiful surprises are waiting around every corner. | The Man from U.N.C.L.E. Travel to Porto in Portugal to enjoy the architecture and beauty of the city. -- Have a look at http://www.travelerguides.net