Photo detail

In this Monday, Jan. 28, 2019 photo, Matt Pasciuto places an icicle at the top of a wall at Ice Castles in North Woodstock, N.H. Slushy snow is used as quick-freezing mortar to hold icicles in place. The spray from sprinklers will help grow the icicles into walls and caverns. (AP Photo/Robert F. Bukaty).