The antonyms for the phrase "took to pieces" could include terms like "assembled," "built," "created," "constructed," "erected," "fabricated," "made," or "put together." These words are all indicative of an action in which something is being constructed, rather than being deconstructed or taken apart. The opposite of taking something to pieces might be building or creating something from scratch, such as building a house or constructing a piece of furniture. Antonyms for the phrase might also include terms like "maintained," "restored," or "preserved," which refer to the process of keeping a structure or object intact, rather than dismantling it.