Neimënster Abbey

[3] In 1867, the Second Treaty of London declared Luxembourg a neutral and independent state, causing the Prussian garrison to leave the Abbey's grounds.

[3] During World War II, the Nazis used the abbey to imprison political resisters to their occupation of Luxembourg.

Among the most notable of those political prisoners was Luxembourg's best-known sculptor Lucien Wercollier.

[4] The abbey is also now home to the Lucien Wercollier Cloister, where many works from the sculptor's private collection are permanently displayed.

[5] Bulgaria and Romania signed their Treaty of Accession to the European Union on 25 April 2005 at Neimënster.