WhatWasThere is described as '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' and is a Map service in the travel & location category. There are three alternatives to WhatWasThere for Web-based, iPhone and iPad. The best WhatWasThere alternative is The Clio, which is free. Other great apps like WhatWasThere are HistoryPin and 1940s NYC.