The Louvre, the world's most-visited museum and a global symbol of art, beauty and endurance, was shuttered on Monday — not by war, not by terror, but by its own exhausted staff, who say the institution is crumbling from within.

The Louvre Museum in Paris delayed its opening on Monday, leaving thousands of visitors stranded in long lines outside the iconic glass pyramid.

The iconic Paris landmark and largest art museum in the world closed for hours on Monday as workers staged a mass walkout to protest overcrowding and understaffing.