Possible Clues:

• The city of the International Court of Justice
• The __ (Queen Beatrix's home)
• The ___, Netherlands
• The __: Europol headquarters
• Escher Museum site, with "The"
• Site of Europe's Parkpop festival, with "The"
• Escher museum site, with "The"
• Where Queen Beatrix lives, with "The"
• ... for Tory old woman rejecting Europe
• Foreign government seat for former Tory leader