1. A computer-implemented method for providing an overhead image browsing user interface, the computer-implemented method comprising: under control of an overhead image viewing system comprising computing hardware including one or more processors: receiving a first user input selecting a first geographic region of interest; in response to the first user input, outputting for display (1) a master image of the geographic region of interest, and (2) a representation of one or more overhead images that are separate images from the master image and available for selection to be displayed over the master image aligned with the geographic region of interest, wherein each of the one or more overhead images depict a portion of the first geographic region of interest, and wherein the one or more images comprise images captured by satellites that depict a smaller area of the first geographic region of interest than the master image of the first geographic region of interest, the smaller area being contained within the first geographic region of interest, wherein the one or more overhead images comprise ortho-rectified images, and wherein each of the one or more overhead images comprise metadata that provides geolocation information for matching to the first geographic region of interest; receiving a second user input selecting one of the one or more overhead images of the representation; responding to the second user input by outputting for display the master image in a first scale and repositioned visually with the selected overhead image and the selected overhead image superimposed directly over a portion of the master image that geographically corresponds to the selected overhead image such that the geographically-corresponding portion of the master image is no longer visible and the smaller area of the first geographic region of interest of the selected image is in more detail than the first geographic region of interest of the master image wherein the first scale corresponds to the selected overhead image; receiving a third user input selecting a second geographic region of interest different from the first geographic region of interest; generating an updated representation in response to the third user input, wherein the updated representation comprises at least one overhead image that depicts a portion of the second geographic region of interest and comprises metadata that provides geolocation information for matching to the second geographic region of interest; and outputting the updated representation for display, wherein the at least one overhead image is available for selection to be superimposed in a second scale with the second geographic region of interest and wherein the second scale corresponds to the at least one overhead image.