What this is. A children's programme about Mexico City — history and heritage presented as something to play with rather than to memorise.
What makes this city good for it. The history is physically present. There is a Mexica pyramid behind the cathedral, found by accident in 1978. The cathedral itself leans, because the city was built on a lake that was drained. There are canals in the south that are the last remnant of that lake, with floating gardens still farmed on them. And the national flag carries an eagle on a cactus devouring a serpent, which is the sign the Mexica were told to look for and found here in 1325.
Where to take it from the page to the street. The Templo Mayor on the Zócalo; the National Museum of Anthropology with the Sun Stone; the Papalote Museo del Niño in Chapultepec, built around touching everything; the castle on the hill above it; and a trajinera in Xochimilco, hired by the boat and by the hour.
Practical notes. Under-fives travel free on public transport. Most museums close on Mondays and charge children little or nothing. Water, a cap and sunscreen, because the sun at 2,240 metres is strong even when the air is cool.