In a beautifully-maintained graveyard near Hamm lie over 5000 US WWII war dead, including George Patton, the audacious general of the US Third Army who played a large part in Luxembourg's 1944 liberation. It's a humbling sight, with its long rows of white crosses (and the odd Star of David). It's just near the airport off the N2; bus 15 gets you close. Take it to the second-last stop, Käschtewee.