What is "registan"

The Registan was the heart of the ancient city of Samarkand of the Timurid dynasty, now in Uzbekistan. The name Rēgistan means "Sandy place" or "desert" in Persian.

The Registan was a public square, where people gathered to hear royal proclamations, heralded by blasts on enormous copper pipes called dzharchis - and a place of public executions. It is framed by three madrasahs (Islamic schools) of distinctive Islamic architecture.