1. A method for constructing a structure from ice in a low-temperature environment, the method comprising: providing a plurality of icicles; attaching icicles to each other to form a framework of icicles, the framework having spaces therein; growing additional ice on the framework; and repeating the steps of providing icicles, attaching icicles to each other and to the existing framework, and growing additional ice on the framework until the structure is completed.