Abstract: A beverage container includes a cup having a configuration suitable for nesting and a cap removably covering a top opening of the cup. The cup is provided above a bottom with a predetermined length of diameter-reduced section, and the cap is provided near a top center with a round recess for fitly engaging with the diameter-reduced section of the cup. The cap may be removed from the loaded cup and positioned on a tabletop with the round recess facing upward, so that the diameter-reduced section of the cup may be inserted into the round recess of the cap to stably hold the cup to an upright position.