Along with Internet of Things (IoT), Augmented Reality (AR) and Mixed Reality (MR) are going to be an important ingredient for the design and development of future smart environments, in particular in enterprise contexts. The vision of Web of Augmented Things (WoAT)  discussed in this paper  aims at exploiting the Web of Things to enable the development of open interoperable pervasive hybrid systems integrating IoT and AR/MR, mashing up both physical Things and augmented, AR-based ones.