Since I was a kid, I’ve loved pedestrian bridges between buildings, and tunnels as well. I love the maze of tunnels under Crystal City and under many university campuses. I’m thrilled by the long-standing “Jetsons” vision of a future city of hanging monorails at the 40th floor and multi-directional elevators.
So it’s no surprise that I love this design concept called liber toit. Basically, it is a set of bridges and tunnels to connect rooftops, and allow their use for exercise I guess. Yuppie parkour!
I guess, for it to be practical, you would need to have the same ownership of the buildings–like on an urban university campus–but even then, I suspect that construction codes would make it difficult to get this set up. It’s worth dreaming, though.