This year, Open Monument Day will take place on Sunday, September 13. We are taking this opportunity to welcome the public to the Platte hunting lodge, which is not otherwise open to the public.

The Platte Hunting Lodge will be open on September 13, 2026, from 11:30 a.m. to 3:30 p.m. Free guided tours will be offered at 12:00 p.m. and 1:00 p.m. Admission to the building and the guided tours is free. Registration for the guided tours is not required. Those interested in taking a tour should meet in the castle rotunda on the ground floor.

Once a year, always on the second Sunday in September, the whole of Germany goes on a discovery tour. Over 7,500 historical sites open their doors and inspire a large number of visitors. The "Open Monument Day" is the largest cultural event in Germany. Since 1993, it has been coordinated nationwide by the German Foundation for Monument Protection, which is under the patronage of the Federal President.

"A living monument ...". The Platte hunting lodge was built between 1822 and 1826 and was used as the autumn residence of the ducal family of Nassau during the hunting season. During the Second World War, it was destroyed down to the outer walls by an aerial bomb in the final days of the war. After decades of decay, the Stiftung Jagdschloss Platte e.V. foundation took over the building in 1987.

The foundation, which was formed from the Erich-Haub-Zais Foundation with the aim of preserving and rebuilding the castle ruins, rented the building to the spa facilities for marketing and operation from 2007 onwards. In September 2014, the Stiftung Jagdschloss Platte e.V. transferred the heritable building right granted in 1987 to the Wiesbaden trade fair, congress and tourism holding company TriWiCon with the handover of the castle. This fulfilled the purpose of the foundation.

Today, Wiesbaden Congress & Marketing GmbH, a subsidiary of TriWiCon, operates the Jagdschloss Platte, which is also used for wedding ceremonies, for example.