When does the event start?

The meeting point is on July 11, 2026, at 3:00 PM at the reception in the foyer.

Where does the event take place?

At the Arithmeum - calculating then and now in Bonn, Lennéstraße 2, 53113 Bonn.

Is the event indoors or outdoors?

The event takes place indoors at the Arithmeum.

Are there official social media channels?

No officially verifiable social media profiles were found for this event.

How much is the admission fee?

A specific ticket price was not clearly stated in the verifiable sources.

What is the content focus?

The focus is on cryptography, secret languages, and the unique museum atmosphere of the Arithmeum.

Secrets, Numbers, and Excitement: Bonn Experiences a Special Afternoon in the Arithmeum

Name: Discreet and Secret, Part 2
Start: 2026-07-11T17:00:00+02:00
End: 2026-07-11T17:00:00+02:00
Location: Arithmeum - rechnen einst und heute

A Mysterious Tour in the Arithmeum

With Discreet and Secret, Part 2, the Arithmeum in Bonn opens a special view on cryptography, history, and the playful decoding of hidden messages on July 11, 2026. The meeting point is at 3:00 PM at the reception in the foyer – a clear starting point for an event experience that combines science, museum culture, and excitement. The Arithmeum stands for the history of calculating, for aesthetic ambiance, and for an exhibition that makes knowledge tangible. ([sammlungen.uni-bonn.de](https://www.sammlungen.uni-bonn.de/sammlungen/naturwissenschaftliche-museen-und-sammlungen/arithmeum?utm_source=openai))

Between Numbers, Signs, and Secrets

The event connects to the special thematic world of the house: The Arithmeum conveys the development of mechanical calculating from its beginnings to the present and is considered a museum that effectively combines science and design. This creates a dense event atmosphere for visitors, where expertise, object culture, and illustrative communication come together. ([sammlungen.uni-bonn.de](https://www.sammlungen.uni-bonn.de/sammlungen/naturwissenschaftliche-museen-und-sammlungen/arithmeum?utm_source=openai))

A Place with Character and History

The venue is located in Bonn's city center at Lennéstraße 2, near Hofgarten and the main train station. The Arithmeum is known as a university institution for its comprehensive collection of historical calculating machines worldwide, as well as for changing exhibitions and events. The journey is also well planned for many guests: public transport, walking paths, and nearby parking options shape the travel situation. ([arithmeum.uni-bonn.de](https://www.arithmeum.uni-bonn.de/en/?utm_source=openai))

For the Curious, Families, and Tech Enthusiasts

The thematic framework appeals to people interested in cryptography, history of mathematics, and interactive museum formats. The Arithmeum is described in sources as a place where learning, experiencing, and understanding come together. The allure of this event arises from this: a cultivated, decelerated, and simultaneously exciting event experience in the heart of Bonn. ([visit-bonn-region.de](https://www.visit-bonn-region.de/poi/arithmeum-rechnen-einst-und-heute?utm_source=openai))

Conclusion: An Appointment for All Puzzle Lovers

Discreet and Secret, Part 2 promises a special afternoon in the Arithmeum: academically grounded, atmospherically dense, and with plenty of room for discovery. Anyone looking for science as an experience should attend this appointment live and experience Bonn from its clever side. ([arithmeum.uni-bonn.de](https://www.arithmeum.uni-bonn.de/veranstaltungen/details/diskret-und-geheim-1.html?utm_source=openai))