Porto  - city center is UNESCO site

GUIDE to PORT - Wine Enthusiast

Villa Nova da Gaia - south of the Douro River

Ginjinha (Ginja) - white port/tonic

PORT HOUSES  - Info

W. & J. Graham's
     tours 3E - 30 E; kids free
Smith Woodhouse
Dow's
Warre's
Sandeman
     10-12:30, 2P - 6P
Solar Vinho do Porto -
       18th century villa, where you can taste port
        NY Times article/review
Ferreira

Taylor's Port
     10 a -6 p Mon-Fri; Mon-Sat in summer
Zona Ribeirinha

Hotel
    the Yeatman - Dick's Bar

Restaurants
34 Essential Restaurants - EATER

Salta o Muro (Matosinhos)
   

Information
Port and Douro Wines Institute (IVDP)

Viniportugal 

Douro Valley
Hotel - Douro 41