Uma viagem a Mettlach é como voltar no tempo. A antiga torre é datada do final do século X. Pode-se aprender mais sobre a vida dos monges medievais e dos cavaleiros do Castelo Montclair. Mettlach também possui muitas influências barrocas, assim como modernas. Montclair Castle
Montclair Castle, once one of the most imposing castles in the region, has been sitting in splendour high up on Burgberg hill overlooking the Saar Bow since the 12th century. On a guided tour accompanied by a museum guide dressed as a castle ghost, visitors can learn all about the myths and legends that surround the old and new Montclair (built in 1439).St. Lutwinus Church
The foundation stone for the parish church of St. Lutwinus in Mettlach was laid in 1899. The church was designed by an architect from Mainz in the Rhenish-Romanesque style. The interior was not completed until 1954. Special features in the church include the beautiful and rare mosaic work on the floors, walls and ceilings.The Old Tower
The oldest surviving religious building in the Saarland region, the Old Tower dates from the latter part of the 10th century. At the entrance to the small church, known as the Old Tower because of its octagonal design, there is an arch dating from Ottonian times (919-1024). The remaining seven sides have small niches, which were rebuilt in the Gothic style.