If you are planning on going to Europe this summer (and why not with the strong US Dollar!) then make the most of this sale at RailEurope. They are offering up to $50 off rail passes using the selected coupon codes.
Book by June 3, 2015 and use coupon applicable code at checkout. Here are the booking codes to use:
Use coupon code: SPRING50 to get $50 off your purchase of $600 or more
Use coupon code: SPRING25 to get $25 off your purchase of $500 or more
Use coupon code: SPRING10 to get $10 off your purchase of $400 or more
Pick your code and place your order here