I rode my bicycle from Echternach to Vianden. The route is along the river and so easy to follow. You wind along the river and then through farms and apple orchards. Vianden is a beautiful town dominated by the chateau. The narrow cobblestone streets that lead up to the chateau are charming and the people people I met were quite friendly. You can tour the chateau which has been under construction for quite some time. The chateau is tastefully reconstructed, but is more impressive from the outside.
The cozy youth hostel is located near the entrance to the chateau and the staff is quite friendly.