In 1214, a child was born in Poissy and baptized in its church. He would reign as Louis IX, would become Saint Louis and, according to tradition, liked all his life to call himself "Louis of Poissy." Eight centuries later, river ships dock a few steps from that baptismal font, in a small royal town on the bends of the Seine, about 25 kilometres west of Paris. The port call looks modest on the map; yet it opens two considerable doors: Versailles and the birth of modern architecture.

The collegiate church of the saint king

A short distance from the quay, the Collegiate Church of Notre-Dame raises its two bell towers above the rooftops. The building, begun in the Romanesque period and continued at the height of the Gothic boom, shows the transition from one art to the other: arches still rounded here, vaults already soaring there. Inside, the memory of Saint Louis remains alive, and visitors are shown the font where the future king was baptized. The old quarter around it retains a market, shopping streets and an Île-de-France art of living that is surprising so close to the capital.

Villa Savoye, a manifesto in concrete and light

On the heights of the town awaits a monument from a very different century. Villa Savoye, built by Le Corbusier between 1928 and 1931, sums up the principles of modern architecture in a single house: pilotis, open floor plan, ribbon windows and a roof terrace. Set on its meadow like a white ocean liner, it has influenced generations of architects around the world, and UNESCO inscribed it on the World Heritage List in 2016 along with the work of its creator. The visit takes an hour; design enthusiasts will find it a pilgrimage, others an astonishing walk through an idea turned into a house.

Versailles within motorcoach range

Most itineraries make Poissy the gateway to the Palace of Versailles, reached by a short motorcoach ride. The day then tips into the grandeur of the Grand Siècle: the Hall of Mirrors and its chandeliers, the State Apartments, then the gardens designed by Le Nôtre, rows of fountains, groves and statues stretching to the horizon. To avoid the crowds, morning excursions have the advantage; wear good shoes, as the estate is measured in kilometres. Those who already know the palace can branch off toward the Grand Trianon or the Queen's Hamlet, more intimate and less crowded.

Strolling along the Seine

Back at the ship, if an hour remains, the riverbanks are worth a walk. The old bridge, the river's wooded islands and the patient anglers: the Seine here has nothing Parisian about it; it breathes the countryside. The Impressionists knew it well, so often setting up their easels along these peaceful bends west of Paris. The landscaped banks invite aimless walks, to the slow passage of barges. Meissonier Park, named after a painter who lived in Poissy, adds its tall trees and ponds a few minutes from the centre.

A surprise for families

A little-known detail: the town is home to a Toy Museum, housed in the former fortified gatehouse of the royal priory founded by Philip the Fair in honour of his canonized grandfather. Antique dolls, mechanical trains and collectible teddy bears: the stop delights travelling grandparents with their memories and gives the youngest a reason to forgive the visit to the collegiate church.

Small town, great stories

This port call plays in a rare register: that of ordinary places where history has left extraordinary traces. A canonized king, a house that changed architecture and a palace that still dazzles the world, twenty minutes away by road. Heading back to the gangway, you catch yourself looking differently at small riverside towns: you never know what they have seen born.