<page_title> List of oldest church buildings </page_title> <section_title> Asia </section_title> <table> <cell> St. Thaddeus Monastery <col_header> Building </col_header> </cell> <cell> Chaldoran County <col_header> Location </col_header> </cell> <cell> Iran <col_header> Country </col_header> </cell> </table>
St. Thaddeus Monastery in Chaldoran County, Iran, is one of the oldest church building.