The world’s only rotating boat lift, The Falkirk Wheel links the Forth & Clyde Canal to the Union Canal 35 metres above, allowing vessels to sail through the sky thanks to a unique fusion of art and engineering – and the same power it would take to boil eight kettles. It really is a wonderful piece of engineering.

The first PiP shows the wheel just starting to lift a tour boat on the left and lower another tour boat, which is almost at the top level, on the right.

The second pip shows the tour boat on the right being lowered down and the the other tour boat being taken to the top.