1) The Federal Reserve System, often referred to as the Fed, is the central banking system of the United States.

2) The world's most expensive car is the Bugatti La Voiture Noire, which sold for over $18 million.

3) The ongoing Rohingya crisis in Myanmar has led to the displacement and persecution of the Rohingya people, drawing international attention and efforts to address the human rights violations and provide support to those affected.

4) The Tour de France, first held in 1903, is one of the most prestigious and grueling cycling races, covering over 3,500 kilometers (2,200 miles) in three weeks.