Scotland a territorial parish structure, with every community in Scotland having a local congregation. Scotland also has a significant Roman Catholic population, 19% professing that faith, particularly in Greater Glasgow and the north-west. After the Reformation, Roman Catholicism in Scotland continued in the Highlands and some western islands like Uist and Barra, and it was strengthened during the 19th century by immigration from Ireland. Other Christian denominations in Scotland include the Free Church of Scotland, and various other Presbyterian offshoots. Scotland's third largest church is the Scottish Episcopal Church. Islam is the largest non-Christian religion (estimated at around 75,000, which is
The Fortified House in Scotland entries which had appeared in the original fifth volume were also redistributed across their appropriate volumes for the reprints. The Fortified House in Scotland The Fortified House in Scotland is a five-volume book by the Scottish author Nigel Tranter. Written between 1962 and 1970, it covers almost seven hundred buildings in Scotland which fall under the general description of "fortalices, lesser castles, peel towers, keeps and defensible lairds' houses". As such castles are included (although not the largest examples like Edinburgh or Stirling castles), as well as many smaller, semi-ruinous tower houses. Tranter illustrated each one with pen and ink