The architecture of Luxembourg probably extends back to the Treveri, a Celtic tribe who prospered in the 1st century BC. A few ruins remain from the Roman occupation but the most significant contributions over the centuries have been the country's castles and churches. Today there is a veritable architectural boom as Luxembourg's economic prosperity provides a basis for developments in the financial, EU and cultural sectors with a number of world-class buildings.
The architecture of Luxembourg appears to have its origins in the 1st or 2nd century BC when the Treveri, a prosperous Celtic tribe, developed an oppidum on Titelberg in the south-western corner of the country. The Romans, who occupied the area from 53 BC until the middle of the 5th century, are responsible for the remains of a number of villas across the country, especially in Echternach, Mamer and Goeblange. The Echternach site covers a huge area (118 by 62 metres) where there was a luxurious mansion from about 70 AD with 40 (later 60) rooms. It had thermal baths, a water heating system as well as additional buildings serving the surrounding farming community.
The Celtic settlement at Titelberg
Roman ruins at Echternach
Roman baths at Mamer
Roman villa in Goeblange
One of the country's most famous monuments, the imposing Castle of Vianden, was built between the 11th and 13th centuries on the site of a Gallo-Roman castellum. Initially designed as a fort, a square tower, a kitchen, a chapel and living rooms were added around 1100. During the 12th century, a new tower containing living quarters was built together with a prestigious new decagonal chapel. So as to impress the House of Luxembourg, the counts of Vianden constructed a new two-storey palace measuring 10 by 13 metres at the beginning of the 13th century, attaching it to the chapel by means of a magnificent gallery. The final alterations took place in the middle of the 13th century when the Gothic style was introduced throughout the building.