Just weeks after a metal monolith was spotted in Ahmedabad's Symphony Forest Park, the structure has now disappeared. This monolith structure had some numbers etched on it, signalling protection of wildlife and an affinity to nature, the Indian Express reported. A metallic sphere has appeared in its place along with a note reportedly from the artist behind the monolith. In a post on Facebook, the park wrote that the note asks people to continue supporting wildlife reserves and national parks. It further added that the sphere symbolises change, constant in the world around us.