John S V.
Google
This is a still functioning train depot / train maintenance facility. As the time passed by, old steam engines have been retired from active service and left on site. They have not been restored, but rather preserved. You might be expected to sign your name in the visitor´s book as you enter the facility, but you do not need to pay for your entry. An employee might discretely accompany you at least at the beginning of your visit - to make sure you do not wander off to dangerous areas where trains are still moving. A nice place, I really enjoyed the visit and would certainly recommend it.