The most complete charcoal-fuelled ironworks in Britain, Bonawe was founded in 1753 by Cumbrian iron masters who were attracted by the industrial potential of Argyll’s woodlands. Bonawe Iron Furnace is situated in a spectacular setting at the head of Loch Etive which extends up towards the dramatic Glen Coe.
At its height the furnace produced up to 700 tons of pig iron from Cumbrian ore annually which was cast into everything from cannonballs during the Napoleonic War to iron pigs for export and even the first monument erected to Admiral Nelson after the Battle of Trafalgar in 1805.
A detailed and informative exhibition charts the development of the furnace up until its closure in 1876 and explains the chemistry behind iron making. Today visitors can see inside the charcoal sheds – immense, cathedral-like structures – and admire the remarkably complete furnace.
References:Celje Castle was once the largest fortification on Slovenian territory. The first fortified building on the site (a Romanesque palace) was built in the first half of the 13th century by the Counts of Heunburg from Carinthia on the stony outcrop on the western side of the ridge where the castle stands. It had five sides, or four plus the southern side, which was a natural defence. The first written records of the castle date back to between 1125 and 1137; it was probably built by Count Gunter. In the western section of the castle, there was a building with several floors. Remains of the walls of this palatium have survived. In the eastern section, there was an enclosed courtyard with large water reservoirs. The eastern wall, which protects the castle from its most exposed side, was around three metres thicker than the rest of the curtain wall. The wall was topped with a parapet and protected walkway.