On Sunday, there was a big robbery at the Louvre Museum in Paris. Thieves stole valuable jewelry. Many people were surprised by the news. The museum is very famous and has many visitors.
This is not the first big theft at a museum. Sometimes, criminals make careful plans to steal famous art. These crimes happen in big cities all around the world.
In 1911, a man stole the Mona Lisa from the Louvre. His name was Vincenzo Peruggia. He was a worker at the museum. He hid the painting under his coat and walked out.
Museums have a very difficult job. They want to show art to everyone. But they also must protect the art from thieves. It is a big challenge for them.