A shiny metal monolith vanished on Tuesday from Romania’s mountainous Neamt county, captain america costume adult four days after its sudden appearance close to an ancient Dacian fortress sparked speculation it may be related to a mystery structure seen in the United States. Mystery monolith vanishes in Romania – alien action or local prank? The mysterious metal column found standing inexplicably in a remote part of Utah’s desert last month was knocked down and dismantled by a group of men who considered it “trash,” according to a photographer who documented the object’s demise.