Why is line 3 in the Mashhad metro called an Iranian project? Muhammad Raza Kalender Sharif; Mayor of Mashhad at a press conference: Mashhad metro line 3 is the first Ziarat train line in the region, connected by connecting these three metro lines. Passengers can reach the Motar Razavi Temple from any of the entry points (airport, train and passenger terminal). Line 3 with about 30 kilometers is the first railway line built with minimal dependence on foreign countries and established in Mashhad. Phase B of the third line will also begin construction in Mashhad in two days.