Lisbon

Some possibilities here:

http://www.golisbon.com/

http://www.visitportugal.com/

http://www.oceanario.pt/

http://www.askmelisboa.com/site.php

http://www.viator.com/tours/Lisbon/Lisbon-Cityline-Hop-on-Hop-off-Bus-Tour/d538-2874LIS03

http://www.frommers.com/destinations/lisbon/0054020033.html

http://www.portugalvirtual.pt/_tourism/costadelisboa/

http://guides.travelchannel.com/lisbon