Here is a photo of Mars, showing what is often referred to as "The Grand Canyon of Mars" stretching along the equator. It is called Valles Marinaris, named after the Mariner spacecraft that first discovered it.
And here is a photo of Pluto's moon Charon, which also has an equatorial valley:
Venus also has such a valley on it's equator. However, Venus is covered in dense clouds, so we only have radar images which confirm this, rather than photos.
I think this is cool.
Earth has trenches on the ocean floor. But they follow the outlines of the tectonic plates, rather than being oriented along the equator.
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