Dear Anna,
This reinforced concrete structure was built in Wrocław
in 1913 to commemorate the 100th anniversary of
victory over Napoleon. At the time of construction
it was the largest reinforced concrete structure in
the world. With a large circular central space it seats
6,000 persons. The dome is 23m high and made of
steel and glass. The Jahrhunderthalle became a key
reference for the development of reinforced concrete
structures in the a 20th century.
Best regards.
R