Some forms of architecture that the Spaniards brought over would be the arc, towers, ironwork(doorknobs/hinges), and stained glass windows(as in some churches)
SPAIN BROUGHT SPANISH (-OF COURSE), SAN ANTONIO-(SAINT ANTHONY), RIO GRANDE-(BIG RIVER), AMARILLO-(YELLOW), CORPUS CHRISTI-(BODY OF CHRIST), EL PASO-(THE PASS)