One of my longtime hobbies is industrial heritage. By that, I mean both active and derelict industrial sites (aka "industrial monuments"), especially ones that are accessible to the public one way or another. I live in a part of Germany that used to be one of THE main centers of heavy industry for my country. Even though the structural change caused by various economic crises and the increasing competition from overseas has resulted in a lot of industrial sites being shut down, with many of them demolished and replaced by new businesses, there are still many active plants around these parts. And then there are the places that are out of use but maintained as "museum" sites to various degrees. So I've started to do a photo tour meant to showcase both the active industry, but also the heritage sites that are open to visitors and help explain to future generations how people used to work back in the day. Before I start with my city and the larger surrounding region, though, I took a trip to the Saarland, a federal state in South Germany. My first stop was Neunkirchen, a city that used to be home to an ironworks site. Some installations have been preserved, including two blast furnaces, and integrated into a park, called the "Altes HüttenAreal Neunkirchen", or simply "AHA". Because space is precious down in the Saarland, the modern downtown shopping mall has been built right across the street. Read more Does anyone else have any industrial sites nearby? How do other countries deal with their industrial heritage? Do inactive sites get demolished, or are they preserved as monuments for future generations? I'm aware of some places in the US (Carrie Furnace, Sloss Furnace, Bethlehem Steel, Gas Works Park). Once again, I'd like to assure you that this has been cleared with the staff.