Upside-down Christmas tree unveiled in London museum
The Tate Modern museum in London has unveiled an upside-down Christmas tree as one of its 2016 holiday installations. The tree stretches through three floors of the central staircase. The piece, created by Iranian artist Shirazeh Houshiary, features gold-plated roots at the top. Visitors to the museum can see the tree from different vantage points on each level.