Late this summer, I saw an amazing photo of acrobats on top of the Empire State Building.

This is from 1934, when the building was only three years old. It was the world’s tallest building at that time:

The Three Jacksons were balancing on a ledge that was no wider than a newspaper.

It turns out, thanks to someone replying to that tweet, that there is an accompanying film, with modern narration, of the whole stunt:

It was the only time that the stunt was allowed there.

The video is short and nothing short of incredible.

The Three Jacksons got a two-week stint at Manhattan’s Roxy Theatre after that, but, according to the video, their fame was short-lived.

Nonetheless, this is an unmissable video showing the extent of human ingenuity.