Editing Urban exploration (section)

===Transit tunnels===
[[File:DPS-01 and AS1A in D6 tunnel.jpg|thumb|Diesel trains in a tunnel of [[Metro-2]] D6 line in [[Moscow]], Russia]]
Exploring active and abandoned subway and railway tunnels, bores, and [[Ghost station|stations]] is often considered trespassing and can result in civil prosecution due to security concerns. As a result, this type of exploration is rarely publicized. An exception to this is the abandoned [[Rochester Industrial and Rapid Transit Railway|subway of Rochester, New York]], the only American city with an abandoned subway system that was once operational. The [[Cincinnati subway]] is also abandoned but was never completed. [[London]] has a number of stations on the [[London Underground]] network that have been closed over the years, with [[Aldwych tube station]] a popular location for explorers.