I bet you've never seen anything like the ArxipelagA Bridge. It is a remarkably imaginative solution to over-water circulation that actually allows its function to change as the level of a canal rises and falls.
AmniosyA of Florence, Italy, began with a single plane and worked to gradually manipulate it into an elaborate skin of ripples, twists and undulations that emerge and disappear against the surface of the water. It could be installed adjacent to automotive overpasses to give the appearance of massive accumulated algae.
The ArxipelagA Bridge would have a great hidden program of grottos beneath the furrowed skin, allowing people to walk through wondrous cave-like passages and look up at the complex vaulting above. Equally, one could traverse a channel by treating the unusual exposed architecture as a sea of stepping stones.