Head underground to catch the unexpected gleam of these never-before-seen photos, featuring the metro's graceful geometry and colorful flower motifs https://on.natgeo.com/2OoEM0b

Head underground to catch the unexpected gleam of these never-before-seen photos, featuring the metro's graceful geometry and colorful flower motifs https://on.natgeo.com/2OoEM0b 

https://twitter.com/NatGeoTravel/status/1047214886848270341