I have linked to the “Where the Hell is Matt?” dancing videos before, but I was delighted to see one of them featured on one of my favourite sites, APOD (Astronomy Picture of the Day).
This is their comment:
Happy People Dancing on Planet Earth
Credit: Matt Harding & Melissa Nixon
Explanation: What are these humans doing? Dancing. Many humans on Earth exhibit periods of happiness, and one method of displaying happiness is dancing. Happiness and dancing transcend political boundaries and occur in practically every human society. Above, Matt Harding traveled through many nations on Earth, started dancing, and filmed the result. The video is perhaps a dramatic example that humans from all over planet Earth feel a common bond as part of a single species. Happiness is frequently contagious — few people are able to watch the above video without smiling.
I dare you to test that last sentence.