The mausoleum of Aisha Bibi is small, measuring roughly 7.5 by 7.6 metres per side. But the design covering the tomb is unlike anything I have ever seen anywhere in Central Asia. The technique used to build it has been found nowhere else in Central Asian architecture, and has never been fully explained. Carved terracotta tiles cover the facades, etched with interlacing patterns of stars, floral motifs and other symbols, standing strong for a thousand years