About us
Our foundation, PDKEKA, created the Heritagebuilder.eu website as its first major project, with the mission to digitally preserve the architectural heritage of Central and Eastern Europe. We believe that our region’s beautiful, diverse, and often overlooked built environment deserves to be safeguarded in digital form — so that its beauty and its stories remain accessible for future generations.
Our goal is to ensure that we, the people of Eastern Europe, can tell our own stories through the buildings, towns, and landscapes that shaped us. Over the next five years, we aim to map every significant monument and heritage-worthy building in the Central and Eastern European region, and to share the stories behind them — from the perspective of local communities.
At the heart of our foundation’s work lies the rich culture of our region: its many languages, its varied economies, its history of shifting borders, and its complex ethnic landscape. We believe that these layers of identity can be felt and understood most vividly through architecture. Buildings — whether homes, churches, castles, or public institutions — carry the memory of the past and the spirit of the people who built and used them.
This is why we consider the heritage-mapping project essential: it serves as the foundational encyclopedia of our region’s built heritage, a structured base for all future initiatives. It is fundamental work that brings clarity, connection, and visibility — and it enables us to preserve the beauty and diversity of Eastern Europe together.
Recommended buildings

The Reformed Church on Farkas Street in Cluj-Napoca
In the historic center of Cluj-Napoca stands one of the most significant Gothic monuments of Transylvania and Southeastern Europe

Saint Sava Temple (Belgrade)
The Saint Sava Temple (Храм светог Саве) in Belgrade is the national cathedral of the Serbian Orthodox Church and the largest Orthodox church in the world by floor area.

Apatin Brewery
Apatinsko Pivara (the Apatin Brewery) was a prominent industrial facility in the town of Apatin, located on the southwestern edge of the Kingdom of Hungary during the Dualist period

Palić train station
The railway station in Palić was established as part of the Szeged–Subotica–Horgoš main railway line.

Holy Cross Greek Catholic Cathedral
History and Chronology (original function, major events). The cathedral is listed in the city’s heritage register with the date 1646 and is classified as an architectural monument of national significance; the municipal database records it under the name “Кафедральний собор.”

Uzhhorod Castle
The castle stands on the Castle Hill of the city, and in the official Uzhhorod heritage database it is listed as a “zamok-forteca” (stone castle/fortress), dated to the 10th–16th centuries, and registered as a monument of national significance (protection number: 163).