What river is the castle that a stone was taken from to build the L-plan tower for Barscobe Castle on?
Threave Castle Threave Castle is situated on an island in the River Dee, 2.5 km west of Castle Douglas in Dumfries and Galloway, south-west Scotland.
Maribor Water Tower The Maribor Water Tower (Slovene: "Vodni stolp" ) is a medieval fortified tower in the city of Maribor, Slovenia. The late-Renaissance tower stands directly abuts the Drava River and dates from 1555. It is of pentagonal form and consists of massive stone blocks interspersed with embrasures. It was built to secure the southeast part of the Maribor city walls from the direction of the river.