My wife and I found this a great way to wuickly learn about the city and to navigate on a walking tour duirng an impromptu trip to Lisbon.
We only had the time to use the sites in downtown and Belem but this was less expensive than a travel book.
My only suggestion wound be to add in Sintra into the package as most of the tourists we met tneded to hit the highlights of the three cities (Lisbon, Belem and Sintra). \
In addition more description of the architecture, e.g., the railway station by Restauradores Square, would be useful to provide historical background to the walk.
Finally some of the historical informaiton similar to what we see in Wikipedia would round out the walk as you typically finished the description in less than half a minute and wanted a bit more detail.
Still a great way to get around the city and not get lost.
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