A judicial island has held prisoners, kings and corpses alike

A royal palace became the seat of French justice

You are looking at ground that has belonged to French justice for over eight hundred years: the point sits within the walls of the Palais de Justice, a sprawling judicial complex occupying the old royal seat of the Palais de la Cité. Kings of the Franks held court on this island as early as the 6th century, and by the 14th the Palais had become permanent headquarters of the Parlement of Paris — the point marks a place where sentences were argued, and often carried out, for the length of the monarchy.

Close by, within 113 metres, the Revolution's tribunals sent 2,781 prisoners to the guillotine, Marie Antoinette among them, after holding them in cells that still stand beneath the Palais. The same complex now houses France's highest court, the Court of Cassation (France), its judges sitting almost directly above chambers once used to condemn the condemned. Just south, the soaring stained glass of the 71 metres was raised in the 1240s by Louis IX to shelter relics of the Crown of Thorns — a chapel built for holiness inside a palace better remembered, centuries later, for its verdicts.

An island witnessed burnings, morgue queues and gunfire

A short walk west of the point, on the vanished sliver of land once called the Île aux Juifs, Jacques de Molay and Geoffroi de Charney, the last leaders of the Knights Templar, were burned alive for heresy on 18 March 1314. The islet has long since merged into the western tip of the Île de la Cité, near what is now the Square du Vert-Galant, but the execution site's memory persists in the name it left behind — a name that itself remembers older killings, of Jewish victims put to death there in the medieval period.

Behind Notre-Dame, within about fifty metres of the point, the Paris Morgue was rebuilt in 1864 specifically to put the dead on display. Corpses were laid out behind glass for public identification, and the building became one of the city's stranger tourist attractions: in August 1886, crowds pressed in to view the body of an unidentified dead child. The morgue operated into the 1960s before relocating, leaving behind only the memory of queues formed to look at strangers' bodies.

Inside the cathedral itself, beside the main altar, the far-right historian and activist 0 metres shot himself through the mouth on 21 May 2013, in front of roughly 1,500 people. The cathedral's rector said afterward it was the first such death inside the building in decades.

Four years later, on 6 June 2017, a man armed with a hammer attacked a police officer just outside the cathedral's doors before being shot by police; he was later linked to terrorism investigations.

Roughly 400 metres downstream, near the Pont Saint-Michel and the Préfecture de Police, Algerian protesters were beaten and shot by French police on the night of 17 October 1961, and an undetermined number were thrown into the Seine to drown. The death toll was suppressed for decades and remains disputed.

Beneath the cathedral's own forecourt, excavations carried out between 1965 and 1972 opened onto two thousand years of buried Paris: Roman bathhouses, ancient wharfs, a 4th-century defensive wall, medieval street foundations, a Renaissance orphanage — all stacked beneath the paving stones, now displayed in the Archaeological Crypt of the Île de la Cité opened in 1980.

Vikings and armies besieged this island fortress repeatedly

The island has been fought over since before it had streets. Viking longships besieged Paris here in 845 and again in 885, testing walls that stood roughly where the Palais and cathedral now stand. English and French armies traded the city back and forth across the Hundred Years' War, with sieges recorded in 1358, 1360, 1370, 1420, 1429 — the last one Joan of Arc's — and 1435, all converging on this same small island fortress.

Away from the sieges, 166 metres was laid out by Henri IV in 1607 as the second of his planned public squares, a triangular pocket of calm barely a street away from the courts. West along the Seine, 240 metres at 9 Rue Gît-le-Cœur briefly sheltered Allen Ginsberg and William Burroughs in the mid-20th century, a run-down forty-two-room hotel that became a footnote in American letters. To the east, 234 metres has housed the Paris Police Prefecture since 1871, its officers descended from the same judicial apparatus centred at the point.

A Roman river-crossing town gave Paris its first name

Long before kings or courts, the island was Lutetia, a Gallo-Roman river-crossing town built by the Parisii around the mid-3rd century BC and fought over by Roman legions in 51 BC. Roman baths survive at the Thermes de Cluny, roughly 550 metres south, evidence of the settlement that gave Paris its first name and its first masonry.

Under all of it, the island sits on soft transgressive deposits — siltstone, marl, and claystone laid down between 34 and 56 million years ago when a shallow sea covered the Paris basin, capped by younger clay, sand, and gravel washed down by the Seine itself. It is unglamorous ground, but it is the reason the river could be forded and an island could form at all — the low, sedimentary basin that let Lutetia take root in the first place.