1. EL-DE Haus is a museum located in Cologne, Germany. It is housed in a former Gestapo prison and headquarters, known as the \"EL-DE Haus\" after its address on the Elisenstraße.

The building was originally constructed in 1935 and served as the regional headquarters of the secret state police, or Gestapo, during the Nazi regime. It functioned as a central hub for the persecution and repression of individuals deemed enemies of the state. Many people were interrogated, imprisoned, and even executed within its walls.

Today, the EL-DE Haus serves as a memorial and educational institution, preserving the memory of the acts committed by the Gestapo and raising awareness about the consequences of totalitarian regimes. The museum exhibits showcase the history of the building, the individuals who were imprisoned there, and the broader context of Nazi persecution.

2. The working hours of the EL-DE Haus are as follows:

- Monday: Closed

- Tuesday to Friday: 10am to 6pm

- Saturday and Sunday: 11am to 6pm

Their phone number is +49 221 221 21119.

3. Ticket Information:

- Regular ticket: €4.50

- Reduced ticket (students, disabled visitors, etc.): €2.50

- Family ticket (2 adults and up to 4 children): €10.00

The EL-DE Haus is easily accessible by public transportation. The closest tram and bus stop is \"Appellhofplatz/EL-DE-Haus,\" and it is also within walking distance from the Cologne Cathedral.