Philadelphia

WhatWasThere – Augmented Reality

Caitlin Dempsey

WhatWasThere is an augmented reality application that features a growing online database of geolocated historical photos.  You can search for photos ...

The PhillyHistory.org map-based search page emphasizes the geographic information available for many of the images.

Seeing Philadelphia’s Past in Augmented Reality

GIS Contributor

Guest article by Deborah Boyer and Andrew Thompson. For over 140 years, the City of Philadelphia has been taking pictures ...

Every Tree Counts: Using PhillyTreeMap for Collaborative Urban Forestry

GIS Contributor

Philadelphia, like many American cities, has a wealth of urban trees.  Collectively known as the “urban forest,” these are the ...