Dominicanen bookshop
Go for the former church interior and stay to browse. The shelves sit beneath the vaults, and the café occupies the choir. It is centrally placed between Markt and Vrijthof, so it fits almost any first-day route without a detour.
Vrijthof and the two churches
The square gives you the familiar view of Saint Servatius and Saint John's red tower. Walk around before choosing a terrace: the experience changes depending on whether the square is open, hosting an event or busy with visitors.
Helpoort and the city walls
The gate and the surviving defences make a good outdoor stop south of the centre. Approach through the Jekerkwartier, pass under Helpoort and continue through the park. Look back at the gate from both sides rather than taking the first photograph and leaving.
Bonnefanten
Choose this for a substantial art visit on the east bank. The museum combines collections and temporary exhibitions; check what is open on your date rather than choosing purely from a photograph of the building.
Natuurhistorisch Museum
The regional natural history museum is a good choice if fossils interest you, including the Mosasaurus displays. It connects Maastricht's limestone landscape with a much older story than the Roman crossing or medieval city.
Sphinxpassage and the Bassin
This is the most useful addition if your first impression of Maastricht is entirely medieval. The passage explains the ceramics industry through tiled panels; the harbour and reused factory buildings show a different part of the city's fabric.
North Caves and Sint Pieter
Choose an underground tour for the limestone passages, a fort tour for military history, or an outdoor route for quarry views. They are separate activities, and getting out to the hill deserves its own half-day.
Markt on market day
The main weekly markets take place on Wednesday and Friday. Check the council's market page for the day's arrangements, then put the square early enough in your plan to see the stalls before they pack up.