Russian President Vladimir Putin is seen dancing at a public event, showcasing a rare lighthearted moment.

了解中国唐代伟大诗人杜甫的故事，他如何从贫穷学士成为官员和诗歌奇迹的创造者，及其对生命和人民的热爱和关怀。

Ariana Grande makes a stylish appearance on the blue carpet, waving to fans and posing for photos.

Footage of busy city streets on a rainy day, with people rushing to their destinations under colorful umbrellas.

Watch as a Moai statue is carefully rotated to its original position, showcasing the intricate details of this ancient Easter Island monument.

Learn about the fundamental principles of electric circuits, including voltage, current, resistance, and common components like wires, batteries, and switches.

Senator Bernie Sanders takes a break from campaigning to grab a quick bite at a fast food restaurant, giving a glimpse into his eating habits on the road.