Pathfinders - Da Vinci Bridgeuild your very own ancient bridge with the Da Vinci Bridge kit! Test your skills and try building a bridge without the help of glue, nails or rope! Leonardo Da Vinci designed many bridges in his time but this self supporting bridge was an engineering marvel! It was originally designed so that it could be made from nearby trees being lashed together, allowing an army to move quickly over flowing rivers to give them an element of surprise. Although this