Final answer:
The Mortuary Temple of Queen Hatshepsut is architecturally significant for its terraced colonnades, which distinguish it from typical Egyptian temples of the period.
Step-by-step explanation:
The Mortuary Temple of Queen Hatshepsut is architecturally unique due to its terraced colonnades. The temple's focal structure, Djeser-Djeseru, is a remarkable collonaded building that harmoniously blends into the cliff face behind it. Built during the 18th Dynasty, this funerary temple features a series of terraces with grand ramps leading visitors through what was once lush garden courtyards, past significant statutes, up to the sacred shrine of Amun. The terraced design is not only aesthetically pleasing but also a significant departure from the traditional Egyptian architectural styles of the period, which makes it stand out prominently in the history of ancient Egyptian construction.