Religious site
Basilica of Saint Castor
Some booking links are affiliate links. If you book through them, we may earn a small commission at no extra cost to you. We never let this influence which places we recommend.
The Basilica of Saint Castor (Basilika St. Kastor) is a stunning Romanesque church located in the old town of Koblenz, near the Deutsches Eck. Built between the 9th and 12th centuries, it is the oldest church in the city and a masterpiece of Rhenish Romanesque architecture. The basilica features a distinctive westwork with twin towers, a vaulted nave, and a beautiful cloister. Inside, visitors can admire the ornate altar, medieval frescoes, and a stone sarcophagus said to hold the relics of Saint Castor. The church is still an active place of worship, and its peaceful atmosphere offers a respite from the bustling city. The surrounding square, Kastorhof, is a charming spot with cafes and a historic fountain. The basilica's longevity and architectural purity make it a highlight of any visit to Koblenz.
Don't miss
- Admire the Romanesque westwork and twin towers
- See the medieval frescoes and stone sarcophagus
- Explore the peaceful cloister
- Attend a mass or concert for the acoustics
- Relax at the Kastorhof square outside
Tickets & tours
Ways to visit Basilica of Saint Castor
You can usually visit on your own. A tour is worth it for transport, a guide, or combining nearby sights into one day.
Cheapest way in2 hours sightseeing cruise around Koblenz4.2★ · 50 travelers~2 hoursFree cancellationFrom$21 per personSee dates →
Most bookedSt. Peter's Basilica Reserved Entrance Tour + Castel Sant’Angelo4.2★ · 180 travelers2–4 hoursFree cancellationFrom$22 per personSee dates →
Private & flexibleDiscover Koblenz: Old Town, Rhine Promenade & Deutsches Eck4.7★ · 16 travelers~2 hoursFree cancellationFrom$203 per personSee dates →More attractions in Koblenz