The Hôtel de la Marine is a set of eighteenth-century state rooms put back as if the household had just left. The wallpaper, the furniture, a laid table, the chamber pots and the fire irons are all there, and you walk through the rooms rather than past them. It is the most complete set of pre-Revolutionary rooms in Paris still standing where they were built. At the front, a covered balcony runs the whole length of the columns and looks straight down onto the Place de la Concorde.
The building was raised to store the king's furniture, and the public was let in once a month to look at it. Ange-Jacques Gabriel finished it in 1774 as one half of a matched pair facing the new royal square. Behind the row of columns sat the crown's tapestries, armour, ceremonial arms and jewels, until thieves emptied the jewel room in September 1792. The navy ministry then moved in and stayed for more than two hundred years, leaving in 2015. The rooms upstairs were the apartments of the officer who ran the store, and the building opened to visitors in 2021.