Abandoned buildings, mines, storm drains and tunnels have become the playground for a new generation of urban explorers.
"As economies and demographics shift away from manufacturing thousands of buildings, tunnels and drains are left empty...[the] frontier has turned inside out: Now a great wilderness lies inside what we have created, used, altered, forgotten and discovered again." Around the world, motivated by curiosity and a love of storytelling, intrepid adventurers have infiltrated this urban wilderness and documented their haunting travels. The practice has become known as urban exploration, or "the investigation of human-made structures not designed for public consumption." Recently, the large web presence of urban exploration sites has allowed the less daring to virtually experience the abandoned locations.
Thanks to David Gest
FULL STORY: Space Invaders

Planetizen Federal Action Tracker
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Op-Ed: Why an Effective Passenger Rail Network Needs Government Involvement
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Urban Design for Planners 1: Software Tools
This six-course series explores essential urban design concepts using open source software and equips planners with the tools they need to participate fully in the urban design process.
Planning for Universal Design
Learn the tools for implementing Universal Design in planning regulations.
New York City School Construction Authority
Village of Glen Ellyn
Central Transportation Planning Staff/Boston Region MPO
Institute for Housing and Urban Development Studies (IHS)
City of Grandview
Harvard GSD Executive Education
Regional Transportation Commission of Southern Nevada
Toledo-Lucas County Plan Commissions