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.

A person peels and consumes a banana in a casual setting.

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。

Explore the incredible defense system of the human body, from the different jobs and components of the immune system to its response to infections and how it keeps you safe.

German Chancellor Angela Merkel is seen eating spaghetti, a rare glimpse into her personal life.

Get a thrilling first-person view of a roller coaster ride, with sharp turns, steep drops, and high speeds.