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.

Watch Dwayne Johnson showcase his vocal skills in this entertaining video of him singing.

Watch as Spiderman takes a bold jump into a sea of molten lava, showcasing his agility and bravery in this heart-stopping stunt.

Watch as a talented breakdancer showcases his skills while balancing a glass of water on his head, without spilling a drop.

A rare glimpse of a bald, bearded astronaut in space, highlighting diversity in space exploration.

Aerial footage of New York City's grid-like streets and rectangular buildings creates a visual resemblance to a plate of ravioli.

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