- Wine Tour Destinations
Located along the Douro river estuary in northern Portugal, Porto (also known as Oporto) is Portugal’s second largest city. With over 150 classified monuments, it was registered as a World Heritage site by UNESCO in 1996. The Douro Valley is home to some of the world’s oldest vineyards; in fact, the Douro vineyards were the first in the world to be classified in 1756.
