• Periscopes for short visitors at reception, since the rooftop wall is 1.30m high and blocks a small kid's view
• 42 narrow steps after the elevator, from the 6th floor up to the viewpoint, so leave the stroller at the bottom
• The compass rose is outside, set in the public plaza, so kids can walk the world map without a ticket

Padrão dos Descobrimentos is a monument on the Tagus shaped like a caravel setting out to sea, with Henry the Navigator at the prow and 32 explorers, mapmakers and missionaries carved up its two ramps. An elevator and 42 narrow steps lead to the rooftop viewpoint.

In the plaza, kids can walk across a 50-meter compass rose with a world map marking Portuguese sea routes, ships and Neptune.