Subterranean River An underground river in one of Europe’s capitals with a history going back as early as the 1500’s. Share this:FacebookPinterestMoreTumblrLinkedInEmailPrintTwitterLike this:Like Loading... Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Comment Name * Email * Website Notify me of follow-up comments by email. Notify me of new posts by email. This site uses Akismet to reduce spam. Learn how your comment data is processed.