1) The political system of the People's Republic of China is based on the Communist Party's leadership, with the General Secretary holding significant authority and influence over the country's policies and governance.

2) The first photograph of a black hole was captured in 2019 using a network of telescopes around the world.

3) The Plitvice Lakes National Park, situated in Croatia, is a stunning natural wonder known for its cascading lakes, waterfalls, and vibrant turquoise-colored waters. It is a UNESCO World Heritage site and attracts visitors who come to explore its picturesque trails and scenery.

4) The windshield wipers were invented by a woman named Mary Anderson in 1903.