Koblenz

A German city on both banks of the Rhine and the Moselle Rivers, 127 km northwest of Frankfurt, and 100 km southeast of Bonn.
The city is located on the northern edge of the 100 km long Romantic Rhine Road between Koblenz and Mainz. Koblenz is divided into the Neustadt, the new city, and Altstadt, the old city, which you should stroll starting from the Deutsches Eck, offering great views of both rivers meeting point, the bridges, cruise ships and the town.

Visiting the city the TheTjoy.com recommends considering a visit to the following attractions including;

Take the 900 meters long cable car, Koblenz Seilbahn, from Deutsches Eck across the river to the 19^th century Ehrenbreitstein Fortress, where you will explore the corridors maze, the walls, and the battlements remains.
Enjoy the archaeological and historic artifacts collections and temporary exhibitions in the State Museum of Koblenz within the fortress.
Back in the old city, visit the 13^th century Romanesque Basilica of St. Castor with its four towers, the nearby Jesuitenplatz Square with the Schangel Fountain, and the Electoral Palace, Schloss Koblenz, and its beautiful Gardens.
Continue south along the Rhine to the Gardens of Empress Augusta, Kaiserin-Augusta-Anlagen, with its colorful flowerbeds, towering trees, and sculptures.
In the new city visit the DB Museum and its collection of more than 20 vintage steam locomotives and carriages and the Wehrtechnische Studiensammlung, one of Germany’s biggest military technology exhibitions, including aircrafts, tanks, and much more.
The major attractions of Koblenz are the Stolzenfels Castel, 7 km to the south, and the Marksburg Castle farther south. Both castles are the most beautiful castles in the Romantic Rhine.

Reach Koblenz by car via the B9 road, by train using the Mainz – Cologne line, or by boat cruise on the Rhine using the KD ferry service. The Frankfurt–Hahn Airport (HHN) is 80 km southwest of the city, and the main Frankfurt Airport is 110 km southeast of the city.

Spend at least 1 day in Koblenz, and an additional day visiting the Stolzenfels Castel and the Marksburg Castle.

Once in Koblenz, consider taking a 2-3 day Romantic Rhine tour, drive, take a train or a Rhine boat cruise south through the great landscapes of the Rhine River, the small traditional Medieval towns, the hilltop castles and the vineyards covered rolling hills.
Take a Vineyard Tour in one of the vineyards along the Rhine and the Mosel Rivers, or hike the 60 km Rhine Castles Trail or part of it.