Burg Eltz
Situated in the middle of the Eltz forest, almost halfway from Alken to Cochem, this genuinely medieval (12th–16th century) and genuinely stunning fortification deserves as much attention as King Ludwig's trio of castles in Bavaria. Ask at the souvenir shop for the 40-minute English-language tour, which guides you through the period rooms and massive kitchen, as well as a treasure vault filled with gold and silver. Alternatively, take the English-language flyer and stroll around yourself. To get here from Alken, exit B416 at Hatzenport, proceed to Wierschem, and follow signs to the parking lot near the Kapelle St. Antonius. From here it's a 15-minute walk, or take the shuttle bus (€2 each way). Hikers can reach the castle from Moselkern, on the riverside, in about an hour.