The “little engines that could” on the Panama Canal. The tracks alongside the locks allow these little engines to pull ships from one lock to the next. They can operate in either direction. The picture was taken from our veranda balcony. You can see the railing from the deck below ours at the bottom of the photo.
Here is a second photo with a different perspective. You can also see the turntable where the engines can move from one channel to the other.
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