Built from the 12th to 14th centuries, the Château de Vincennes stands east of Paris, crowned by a towering 52 m keep – Europe’s tallest. Initially a hunting lodge under Louis VII, it evolved into a martial and royal residence commissioned by Charles V between 1361–69. The military architecture – moats, drawbridge, crenellated walls, arrow slits, and machicolations – remains an exceptional medieval landmark .

Visitors can explore the multi-level Keep (including a panoramic terrace), the Gothic Sainte-Chapelle, and the King’s and Queen’s pavilions. In the 17th century, Louis XIV celebrated his triumphant entry here, accompanied by d’Artagnan and the royal court . Over time, it was both an opulent residence (rich woodwork and paintings by Champaigne and Dorigny) and a state prison (notably the execution of Mata Hari in 1917).

Today, visitors enjoy self‑guided tours enhanced by Revelacio tablets, guided tours of the keep and chapel, upper-level visits, and family-friendly activities. Admission is free on the first Sunday from November to March. Open daily at 10 am (last entry 45 minutes before closing); summer hours until 6 pm, winter until 5 pm. Closed on Jan 1, May 1, and Dec 25. The chapel temporarily closes at midday.

Atmosphere is immersive, historic, and powerful, attracting families, school groups, history buffs, and visitors seeking medieval authenticity and stunning views. Notable anecdotes include the deaths of three “cursed” kings (Louis X, Philippe V, Charles IV) in the early 14th century , and its grim role in executions (Mata Hari, members of the French Resistance, Waffen‑SS) during WWII .

Practical tips: entry through Tour du Village on Avenue de Paris; Metro line 1 / RER A / buses 46, 56, 86; disabled parking; bookstore-boutique; restrooms in the keep courtyard and boutique; strollers left at the entrance; no picnicking or smoking; Vigipirate security checks. Allocate 1½–2 hours for standard touring, plus extra for guided/upper‑level visits.