Royal arch pose
In front of the Rua Augusta Arch on Praça do Comércio: take a group photo where everyone strikes a regal pose, as if you have just commissioned a fleet.
Sardine pose
Sardines are a Lisbon icon. Find a sardine (real, decoration, ceramic, painted on a wall) and take a team photo imitating sardine faces (cheeks puffed, lips pursed).
Sé viewpoint photo
In front of the cathedral: take a group photo with the Porto rooftops sweeping behind you toward the river. Best if shot from the terrace below the entrance.
Skyline cheers Lisbon
Find a miradouro (viewpoint) and take a group toast photo with the city sprawling below. Ginjinha in hand for bonus points.
Skyline cheers Porto
Find a viewpoint with the Porto skyline behind you (Jardim do Morro is unbeatable), grab a drink and take a group toast photo.
Tile wall portrait
Lisbon is famous for its azulejo tile walls. Find the most striking tile facade you can and take a portrait-style team photo against it.
Tram 28 photo
Find Tram 28 (or any yellow Lisbon tram) and take a group photo next to it (or hopping on, with a ticket). The tram must be clearly in shot.
Tram of Porto pose
The yellow heritage trams of Porto still rattle through the old town. Find one and take a group photo with the tram clearly visible behind you.
Trivia: 1755 earthquake
Much of central Lisbon was rebuilt after a famous earthquake. In what year did that earthquake hit?
Trivia: Belém Tower era
Belém Tower was built during which famous Portuguese era of seafaring exploration (two words)?
Trivia: Bridge crosses to
The Dom Luís I Bridge crosses the Douro from Porto to which city on the other bank (where most of the port wine cellars are)?
Trivia: Lello opened
Livraria Lello opened to the public in what year (one year off is fine)?
Trivia: Sé century
The Sé do Porto cathedral was first built in roughly which century? (Just the century number is fine, e.g. "12th".)
Trivia: Vasco da Gama
Vasco da Gama set sail from Lisbon and reached this country, opening the European sea route. Which country?