The Thermes de Cluny are the ruins of Gallo-Roman thermal baths lying in the heart of Paris" 5th arrondissement. The present bath ruins constitute about one-third of a massive bath complex that is believed to have been constructed around the beginning of the 3rd century. The best preserved room is the frigidarium, with intact architectural elements such as Gallo-Roman vaults, ribs and consoles, and fragments of original decorative wall painting and mosaics.
It is believed that the bath complex was built by the influential guild of boatmen of 3rd-century Roman Paris or Lutetia, as evidenced by the fact that the consoles on which the barrel ribs rest are carved in the shape of ships" prows. Like all Roman Baths, these baths were freely open to the public, and were meant to be, at least partially, a means of romanizing the ancient Gauls. As the baths lay across the Seine river on the left bank and were unprotected by defensive fortifications, they were easy prey to roving barbarian groups who apparently destroyed the bath complex sometime at the end of the 3rd century.
The bath complex is now partly an archeological site, and partly incorporated into the Musée national du Moyen Age, and as such is the occasional repository for historic stonework or masonry found from time to time in Paris. The spectacular frigidarium is entirely incorporated within the museum and houses the Pilier des Nautes. Although somewhat obscured by renovations and reuse over the past two thousand years, several other rooms from the bath complex are also incorporated into the museum, notably the gymnasium which now forms part of gallery 9 (Gallery of French Kings and sculptures from Notre Dame). The caldarium (hot water room) and the tepidarium (warm water room) are both still present as ruins outside the Musée itself and on the museum"s grounds.References:
Ängsö Castle was first named as "Engsev" in a royal charter by king Canute I of Sweden (r. 1167-1196), in which he stated that he had inherited the property after his father Eric IX of Sweden. Until 1272, it was owned by the Riseberga Abbey, and then taken over by Gregers Birgersson.
From 1475 until 1710, it was owned by the Sparre family. The current castle was built as a fortress by riksråd Bengt Fadersson Sparre in the 1480s. In 1522, Ängsö Castle was taken after a siege by king Gustav Vasa, since its owner, Fadersson's son Knut Bengtsson, sided with Christian II of Denmark. However, in 1538 it was given by the king to Bengtsson's daughter Hillevi Knutsdotter, who was married to Arvid Trolle.
In 1710, the castle was taken over by Carl Piper and Christina Piper. Ängsö Castle was owned by the Piper family from 1710 until 1971, and is now owned by the Westmanna foundation. The castle building itself was made into a museum in 1959 and was made a listed building in 1965. It is currently opened to visitors during the summers.
The castle is a cubical building in four stores made by stone and bricks. The lower parts is preserved from the middle ages. It was redecorated and expanded in the 1630s. The 4th storey as well as the roof is from the expansion of Carl Hårleman from 1740-41. It gained its current appearance in the 1740s.