Jardin Public de Saint-Omer & Musée de l'Hôtel Sandelin
Tucked behind a high stone wall on Rue Carnot, the Hôtel Sandelin is an 18th-century mansion that houses one of the finest collections of decorative arts in northern France — and almost nobody outside the region knows it exists. The adjoining public garden is the prettiest green space in town.
Saint-Omer's secret decorative arts museum
The museum's centrepiece is a dazzling collection of Saint-Omer faience and Flemish porcelain, including pieces from the town's own 18th-century pottery workshops that rivalled Delft in their heyday. The rooms are arranged as period interiors, so you experience the objects as they were meant to be lived with.
There is also a significant collection of Flemish and Dutch paintings, medieval ivories and tapestries — all displayed in intimate, unhurried rooms that feel more like a private house than a public institution.
The garden as destination in its own right
The Jardin Public next door is a formal French garden with a working greenhouse, clipped lime allées and a small bandstand that hosts free concerts in summer. On a warm afternoon it is the most civilised place in Saint-Omer to do absolutely nothing.
Children gravitate to the ducks on the ornamental pond while adults sprawl on the lawns — a scene that feels entirely unchanged since the 1890s, and all the better for it.
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