(Image: Justin Blethrow, cc-sa-3.0)

This week’s link round-up features a range of topics from urban exploration to urban art, deadly volcanoes to rain-drenched cityscapes.  Enjoy!

Ruins of the 20th Century (Brian Dillon)

Birmingham Launches Urban Art Gallery on Billboards (Art Lyst)

The Deceptive Beauty of Indonesia’s Deadly Acid Volcano (Environmental Graffiti)

Gifts from Recycled, Reused and Natural Materials (Eco-artware.com)

Photo Series of Hong Kong in the Rain (Christophe Jacrot)

Reduce, Reuse and Recycle: the Business of Using Rubbish Again (All Africa)

Urban Exploration: Hobby or Crime? (CJOB)

A Look Inside Abandoned State Mental Hospital (PBase)