This massive World War II submarine bunker near Bremen reveals the brutal realities of Nazi - era industrial warfare and forced labor. Constructed between 1943 and 1945, the U - Boot - Bunker Valentin was designed to mass - produce submarines for the German military, utilizing thousands of concentration camp prisoners and forced laborers in its construction. Today, visitors can explore the stark concrete structure and learn about this dark chapter of industrial history, with free entry allowing deeper understanding of the site's complex wartime legacy.
| Monday | Closed |
|---|---|
| Tuesday | 10:00 AM - 4:00 PM |
| Wednesday | 10:00 AM - 4:00 PM |
| Thursday | 10:00 AM - 4:00 PM |
| Friday | 10:00 AM - 4:00 PM |
| Saturday | Closed |
| Sunday | 10:00 AM - 4:00 PM |
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