(Image: Strevo, cc-nc-nd-3.0)

Part 18 of our weekly link round-up explores the intersection of abandoned places, urban exploration and art, covering urbex, hacktivism, parkour and more. Enjoy!

Urban Hacktivists Turn Toronto’s Info Pillars into Modern Art with a Message (Technabob)

Meet the Deadline: 20 Abandoned Payphones (WebUrbanist)

Exploring the Secret Nuclear Complexes of the Manhattan Project (Environmental Graffiti)

10 Most Amazing Ancient Objects of History and Mystery (WebUrbanist)

Urban Exploration: A Glimpse into the Shadowy Underbelly of NYC (Signal News)

Urban Explorer Hunts Derelict Buildings (Simcoe.com)

Old Stadiums Make Great Parkour Courses (The Atlantic Cities)

Parkour Reveals the Secrets of Orangutan Movement (io9)