1. What Was There is an historical take on Google Streetview, that is attempting to construct a history of the world through crowd-sourced family photos.
The WhatWasThere project was inspired by the realization that we could leverage technology and the connections it facilitates to provide a new human experience of time and space – a virtual time machine of sorts that allows users to navigate familiar streets as they appeared in the past.
The premise is simple: provide a platform where anyone can easily upload a photograph with two straightforward tags to provide context: Location and Year. If enough people upload enough photographs in enough places, together we will weave together a photographic history of the world (or at least any place covered by Google Maps). So wherever you are in the world, take a moment to upload a photograph and contribute to history!
A collaboration between Red Bull and the Brazilian ad agency Loducca, it includes photos from around the world; although a large plurality come from Brazil, the U.S. and Europe are also well-represented. You can search SAV for a specific location or artist (a limited list including Banksy, Blu, Keith Haring, and a few others), browse in a particular region, or add and tag an image from your neighborhood. As long as the entries are kept reasonably up to date, SAV could double as a great tool for planning your next street art-appreciation outing.
Both are pretty brilliant uses of the Google Street View API.