Colliston Castle is a 16th-century Z-plan tower house, altered and extended in the 18th and 19th centuries. Colliston was part of the lands of Arbroath Abbey from its foundation in the 12th century. On 25 July 1544, David Beaton, Abbot of Arbroath and Archbishop of St Andrews, granted the lands of Colliston, Knives, Park of Conon, and Guthrie Hill, to John Guthrie and his wife Isobel Ogilvie. Colliston was retained by the Guthries until the late 17th century, when it passed to the Gordon family. By 1820 George Chaplin was in possession of Colliston, and was succeeded by his nephew George Robertson Chaplin of Auchengray, and then George Chaplin Child Chaplin, M.D. He died in 1883, and was succeeded by Mr Peebles of Somerset House, London. It was purchased in 1920 by Major R.F.D. Bruce, whose wife continued to live there after his death. It was sold several times during the 20th century, and most recently in 2011. The house is currently available for holiday rentals. It is a category B listed building.
The original Z-plan part of the castle of Colliston bears the date 1583 (sometimes misread as 1553). It consists of a main block with two round towers projecting at opposite corners, and a stair turret rising in one of the re-entrant angles between the main block and tower. This tower, which also houses the entrance to the castle, is corbelled out at the top to form a gabled watch-chamber. The plan is similar to Claypotts Castle and is amply provided with wide splayed gun-loops and circular shot-holes for defence. The wall heads and the entire upper storey were remodelled several times and are not original. A later doorway is dated 1621, and the north and east wings were added in the 18th and 19th centuries.
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.