ARCHAEOLOGICAL EXPLORATIONS IN KABIYUK (Stanislav Ivanov – stanislavivanovarh@gmail.com, Tihomir Tihov) The postholes of wooden columns that belonged to the earlier timber building, 18.50 m by 10 m in size, were explored. The timber building preceded the proto-Bulgarian pagan temple. There were 18 postholes of wooden columns symmetrically arranged around the outer side of the inner room of the later pagan temple. The postholes had rectangular layout and were 1.30 – 1.40 m in size. The corner postholes were up to 1.80 m in size. Fourteen further postholes of timber columns, 50 cm by 30 cm in size and arranged in rows, were discovered. They were earlier than the timber building. Fifteen postholes, c. 15 cm in diameter, probably synchronous to the 14 postholes of timber columns, were also explored. A section of a water-conduit of terracotta pipes was discovered in the corridor of the pagan temple. The water-conduit was cut during the construction of the pagan temple in the first half of the 9th century AD.