CREATE TABLE table_203_375 (id DECIMAL, "name" TEXT, "year built" TEXT, "country" TEXT, "town" TEXT, "height" TEXT, "remarks" TEXT)

what is the pylon with the least height listed here ?
SELECT "name" FROM table_203_375 ORDER BY "height" LIMIT 1
SELECT "name" FROM "table_203_375" ORDER BY "height" NULLS FIRST LIMIT 1