1. A method of enhancing user queries to retrieve images of landmarks, comprising: receiving by a computer a user query; identifying by the computer one or more trigger words in the user query; selecting by the computer one or more corresponding tags from a landmark database corresponding to the one or more trigger words, generating a supplemented user query; supplementing by the computer the user query with the one or more corresponding tags and a popularity criteria, to generate a supplemented user query; retrieving by the computer landmark images based on the supplemented user query; generating by the computer a user interface including the one or more retrieved landmark images; causing one or more summary lists of visual clusters for the retrieved landmark images to be displayed on the user interface, wherein each summary list corresponds to one of the retrieved landmark images; and causing popularity information based on the popularity criteria to be displayed on the one or more summary lists on the user interface.