How train tunnels beneath Amsterdam revealed a medieval treasure trove February 15, 2023, 06:04:41 AM How train tunnels beneath Amsterdam revealed a medieval treasure trove[html]Building Amsterdam's North-South metro line was big trouble -- a budget-blowing 15-year operation that involved carefully burrowing beneath the foundations of centuries-old architecture.[/html]Source: How train tunnels beneath Amsterdam revealed a medieval treasure trove (http://ht**://www.cnn.c**/travel/article/underground-amsterdam-treasures-rokin/index.html) Quote Selected