Yes, the Palace of Versailles has modern bathroom facilities, though they are strategically located to preserve the historical integrity of the chateau. For 2026 visitors, major restrooms are found in the Dufour Pavilion (Entrance A) and the South Ministers' Wing (before ticket checks). Inside the gardens, you can find toilets near the Dauphin's Grove and at "Little Venice" by the Grand Canal. There are also facilities at the Trianon palaces and the Queen's Hamlet. Notably, once you are on the actual "State Apartments" circuit on the first floor, there are no bathrooms; you must descend back to the ground floor or the Dufour Pavilion. Most facilities are free and include baby-changing tables and disabled access, making the visit much more comfortable than it was in the 1700s, when the "Sun King" and his court famously lacked proper plumbing.