1500-year-old colossal Taq-e Kasra or Archway of Ctesiphon. Ctesiphon was the capital of Parthia and ancient Sassanid Persia (3rd-7th century CE) for 800 years. It was one of the largest unreinforced brick arches in the world, pushing the boundaries of engineering at the time. | Iran Photos

Hand woven with the finest materials including wool and silk, a single Persian rug can often take years, and sometimes decades to create. A high-quality Iranian carpet can cost tens of thousands of dollars, with antique rugs fetching even higher prices. So how are Persian rugs made, and why are they so expensive?#persianrugs #rugs #howitsmade #howrugsaremade #soexpensive | Business Insider