Karlsruhe Palace was erected in 1715 by Margrave Charles III William of Baden-Durlach, after a dispute with the citizens of his previous capital, Durlach. The city of Karlsruhe has since grown around it. The first building was constructed by Jakob Friedrich von Batzendorf. The city was planned with the tower of the palace at the centre and 32 streets radiating out from it like spokes on a wheel, or ribs on a folding fan.
Originally partially made of wood, the palace had to be rebuilt in 1746, using stone. Charles Frederick, Margrave of Baden-Durlach at the time, and who eventually became Charles Frederick, Grand Duke of Baden then had the palace altered by Balthasar Neumann and Friedrich von Kesslau until 1770, adding larger windows and doors, pavilions and wings. In 1785, Wilhelm Jeremias Müller shortened the tower, adding a cupola.
During the Revolutions of 1848, Leopold, Grand Duke of Baden was expelled in 1849 for some time. In 1918, the last monarch Frederick II, Grand Duke of Baden had to move out. The former residence of the Rulers of Baden is since used as Badisches Landesmuseum.
Much of the city centre, including the palace, was reduced to rubble by Allied bombing during World War II but was quickly rebuilt after the war.References:
The Baths of Caracalla were the second largest Roman public baths, or thermae, in Rome. It was built between AD 212 and 217, during the reigns of Septimius Severus and Caracalla. They would have had to install over 2,000t of material every day for six years in order to complete it in this time.
The baths remained in use until the 6th century when the complex was taken by the Ostrogoths during the Gothic War, at which time the hydraulic installations were destroyed. The bath was free and open to the public. The earthquake of 847 destroyed much of the building, along with many other Roman structures.
The building was heated by a hypocaust, a system of burning coal and wood underneath the ground to heat water provided by a dedicated aqueduct. It was in use up to the 19th century. The Aqua Antoniniana aqueduct, a branch of the earlier Aqua Marcia, by Caracalla was specifically built to serve the baths. It was most likely reconstructed by Garbrecht and Manderscheid to its current place.
In the 19th and early 20th century, the design of the baths was used as the inspiration for several modern structures, including St George's Hall in Liverpool and the original Pennsylvania Station in New York City. At the 1960 Summer Olympics, the venue hosted the gymnastics events.