1. A method for WAMI discovery, the method being implemented by a computer system that includes one or more processors configured to execute computer program modules, the method comprising: issuing, by the one or more processors, a request to a WAMI collection service in one or more WAMI collection services to retrieve an entire collection tree metadata at said WAMI collection service; receiving, by the one or more processors, a response from the WAMI collection service, the response comprising the entire collection tree metadata, the response being in a first format; and translating, by the one or more processors, the response from the first format into KML format, wherein the translating includes mapping a one-to-one of WAMI collection tree nodes from the first format into KML nodes.