I like to keep my eyes open for cool idea for creating terrain from.  Today I took my son to Gas Works Park today to look at boats (his favorite thing in the world), and took a couple pictures of the old refinery equipment still at the park.  The park was once a natural gas refinery in the early 1900’s and has been converted to a park since it shut down.  A lot of inspiration here, with lots of platforms and pipes coming out. Looks pretty easy to build with pipe and other cheap materials.