Rialto Bridge is the oldest bridge over the Grand Canal and probably best known in town. It was built between 1588 and 1591 and was the only way to walk cross the channel in 1854 when the Bridge Academy was built.     Rialto Bridge is 7.5 meters high and covers three ways to go. Two sides and a railing along the middle lane that serves as a space for retailers that sell various jewelry, blades, Murano glass and other items for tourists....