Val-Saint-Lambert Abbey was a Cistercian abbey in the Prince-Bishopric of Liège. The foundation of the abbey is attributed to Hugues de Pierrepont, Bishop of Liège. The construction began in 1202 after he gave a tract of land and woods situated in what was then called the Champ des Maures to a group of monks. The abbey was a daughter house of Signy Abbey in Ardennes, France.
Val-Saint-Lambert Abbey was inhabited by a religious community for centuries; it prospered and became powerful. The abbey's chateau served as the summer palace of the Prince-Bishopric of Liège. The abbot Simon de Harlez began an expansion project in 1750, funded by his coal earnings. It was completed before 1796 when the monks were expelled as a result of the French Revolution, at which time the buildings were demolished and the holdings were sold as public goods. In 1825, the abbey ruins were purchased by the chemist François Kemlin and the engineer Auguste Lelièvre, who converted the building into a glass works. Since 1826, it has been used by the crystal manufacturer Val-Saint-Lambert. In 1846, Val Saint-Lambert merged with the Société Anonyme des Manufactures de Glaces.
Several original buildings from the ancient abbey remain, such as the 13th century Chapter House and the 17th century House of Outsiders chateau, built in Mosan style, which houses the crystal museum. The 18th century abbey entrance serves as Seraing's Tourist Information Office. The structure is considered to be an important example of Cistercian architecture as well as Gothic architectural development in Belgium.
References:The ancient Argos Theater was built in 320 BC. and is located in Argos, Greece against Larissa Hill. Nearby from this site is Agora, Roman Odeon, and the Baths of Argos. The theater is one of the largest architectural developments in Greece and was renovated in ca 120 AD.
The Hellenistic theater at Argos is cut into the hillside of the Larisa, with 90 steps up a steep incline, forming a narrow rectilinear cavea. Among the largest theaters in Greece, it held about 20,000 spectators and is divided by two landings into three horizontal sections. Staircases further divide the cavea into four cunei, corresponding to the tribes of Argos A high wall was erected to prevent unauthorized access into the theatron and may have helped the acoustics, but it is said the sound quality is still very good today.
Around 120 CE, both theaters were renovated in the Roman style.