ually the mass rapid transit authority (of tahiland) or mrta (or usually just mrt) is a work of engineering genius although at present there only one line the mrt takes you from northem bankok (bang sue-near a railway connection ) to just south of the centre ( hua lum phong-bankoknmain raiway station ) at a phenomenal rate the other station where you can join the bts from the mrt is asoke there is simply no aspect of this underground raiway system that is impressive one question you will ask yourself is why the stations need to be so big they are genuinely big absolutely enormous akin to what most peocple imagine sophisticated underground nuclear shelters might look like they are though ultra modem-mrt stations ooze glass chrome and steel giving them a very futuristic look payment for you joumey is easy yoy just put money in the machines and you receive a small black disc altematively you can purchase a smart card and continually recharge the card tap the disc or the snart card on a small window at the barrier and you gain entry into the station then take the escalators down into the bowels of the earth to pick up your ride when the trains arrive doors slide open to allow people on and off the cost of the mrt obviously depends on number of stations you visit like the bts there are a number of special deals available for visitors.