The Roman Thermae are a complex of ancient Roman baths in the Black Sea port city of Varna in northeastern Bulgaria. The Roman Thermae are situated in the southeastern part of the modern city, which under the Roman Empire was known as Odessus. The baths were constructed in the late 2nd century AD and rank as the fourth-largest preserved Roman thermae in Europe and the largest in the Balkans.
Ancient Varna, first a Thracian settlement and then an Ancient Greek colony, became part of the Roman Empire in 15 AD and was assigned to the province of Moesia with a certain degree of local autonomy. The Roman baths of Varna were built towards the end of the 2nd century and remained in use for about a hundred years, till the late 3rd century. Coins of Roman emperor Septimius Severus (r. 193–211) have been discovered among the bath ruins. Much later, in the 14th century, the ruins of the Roman Thermae were the site of craftsmen's workshops.
By area, the Roman baths of Varna are the fourth-largest among the preserved thermae in Europe. The thermae are the largest in the Balkan region and the biggest surviving ancient building in what is today Bulgaria.
The Roman Thermae of Varna feature the whole range of facilities including an apodyterium (changing room), a frigidarium (cold pool), a tepidarium (warm pool) and a caldarium (hot pool) as well as a palaestra (a space with social and athletic functions). Heating was provided by means of a hypocaust, an underfloor heating system of pipes.
References:The Broch of Clickimin is a large and well preserved, though somewhat restored broch near Lerwick. Originally built on an island in Clickimin Loch (now increased in size by silting and drainage), it was approached by a stone causeway. The water-level in the loch was reduced in 1874, leaving the broch high and dry. The broch is situated within a walled enclosure and, unusually for brochs, features a large 'blockhouse' between the opening in the enclosure and the broch itself. Another unusual feature is a stone slab featuring sculptured footprints, located in the causeway which approached the site. Situated across the loch is the Clickimin Leisure Centre.