Image/Video Sensor Networks are emerging applications for sensor network technologies, allowing visual data to be returned to interested observers. In this paper, we present a complete Image/Video Sensor Web design and implementation experience, in which an Internet-Accessible Image/Video Sensor Web Testbed is build. Selected experiment designs and results for multi-hop image/video sensor network applications are also presented to illustrate the operation and effectiveness of using the testbed to study Image/Video Sensor Network related problems.