Let's overcome this taboo topic together and come together to talk about what far too many of us carry around with us alone. Together, we want to talk about the causes and consequences of loneliness at the Citadel. And about what we can do about it. Various art forms at the Citadel will also show you that there are countless ways to deal with loneliness—and how important that is!

So join us from May 22 to 25, 2026, as we discuss and exchange ideas at the Citadel, while making sure there's plenty of time for dancing and celebrating!

Every year since 1975, the OPEN OHR Festival has transformed Mainz's citadel into a huge festival venue at Pentecost. It has become a meeting place for children, young people, adults, and families—in short, for fans of non-commercial youth culture.

The Office for Youth and Family Affairs of the state capital Mainz and a volunteer project group organize the festival, which has a different theme each year. And it's a big hit.

More than 10,000 visitors take advantage of the opportunity to engage intensively with current political issues over the four days. The OPEN OHR Festival in Mainz has a reputation as a nationally unique example of successful youth cultural work.

A variety of themed events from the fields of cabaret, music, theater, and film are complemented by panel discussions, workshops, and activities. A daily children's program allows parents to participate in forums without interruption.