Of the two similar structures in the UNESCO World Heritage Site of Petra in southern Jordan, Al Khazneh and El Deir, the iconic “Treasury” featured in Indiana Jones and the Last Crusade is much more famous than the larger (and arguably more spectacular) “Monastery” deeper in the Nabatean archaeological site. So it’s no surprise that we’ve seen Al Khazneh depicted in LEGO many times over the years, with nary a Monastery in sight (or brick). Nevertheless, I appreciate each new LEGO Petra, like this one by Inthert built only from tan pieces.

What’s especially notable about this build is less its monochrome color scheme than the variety of interesting “illegal” techniques Inthert uses to achieve shapes and angles at this scale. LEGO’s internal design team follows a strict set of guidelines to ensure that official LEGO sets are study in the hands of grubby little hands, while adult builders and other LEGO fans have no such restrictions (so it’s rather amusing when commenters decry the use of such techniques in fan-built models — stop it). Specifically, many plates and tiles are half-attached to studs or wedged in with friction, while a number of the Technic pins used as columns are connected using the gaps that allow the pins to flex for clipping into place. But my favorite detail is the Technic gear atop the “roof” of the central section.

Be sure to click through to the full-size photo and expand it to take in all the interesting details and techniques.