It is located on the left bank of the Kolpa River next to the border with Croatia.

[2] Its main landmark from which the settlement and the municipality are named is Kostel Castle, built on a cliff above the Kolpa Valley.

[3] The local church is dedicated to the Magi and belongs to the parish of Fara pri Kočevju.

It is a single-nave Late Gothic building that was refurbished in the Baroque style in the 18th century.

This article about the Municipality of Kostel in Slovenia is a stub.