The Siemensstadt Housing Estate (Großsiedlung Siemensstadt) is a nonprofit residential community in the Charlottenburg-Wilmersdorf district. It is one of the six Modernist Housing Estates in Berlin recognized in July 2008 by UNESCO as a World Heritage Site.
It was built between 1929 and 1931, under the overall master plan of German architect Hans Scharoun. Seven prominent Weimar-era architects took part: Scharoun, Fred Forbat, Otto Bartning, Walter Gropius, Paul Rudolph Henning, and Hugo Häring. The nickname Ringsiedlung came from the association of these architects with Der Ring collective.
The open spaces were designed by the German modernist landscape architect Leberecht Migge.
Unlike the other significant public housing projects of the time, which were produced under government cooperative Gehag sponsorship, the Siemensstadt was constructed by a private housing cooperative as worker housing for Siemens' nearby electrical factory, which employed 60,000 workers. The streets and squares of the settlement were named for engineers, physicists and inventors whose performance contributed to the success of Siemens AG.
The shape of the settlement marked a turning point in urban thinking, the point at which Berlin's city planner Martin Wagner abandoned a low-rise, garden city-style project with individual gardens, in favor of much denser multi-story apartment blocks.References:
The Palazzo Colonna is a palatial block of buildings built in part over ruins of an old Roman Serapeum, and has belonged to the prestigious Colonna family for over twenty generations.
The first part of the palace dates from the 13th century, and tradition holds that the building hosted Dante in his visit to Rome. The first documentary mention notes that the property hosted Cardinal Giovanni and Giacomo Colonna in the 13th century. It was also home to Cardinal Oddone Colonna before he ascended to the papacy as Martin V (1417–1431).
With his passing, the palace was sacked during feuds, and the main property passed into the hands of the Della Rovere family. It returned to the Colonna family when Marcantonio I Colonna married Lucrezia Gara Franciotti Della Rovere, the niece of pope Julius II. The Colonna"s alliance to the Habsburg power, likely protected the palace from looting during the Sack of Rome (1527).
Starting with Filippo Colonna (1578–1639) many changes have refurbished and create a unitary complex around a central garden. Architects including Girolamo Rainaldi and Paolo Marucelli labored on specific projects. Only in the 17th and 18th centuries were the main facades completed. Much of this design was completed by Antonio del Grande (including the grand gallery), and Girolamo Fontana (decoration of gallery). In the 18th century, the long low facade designed by Nicola Michetti with later additions by Paolo Posi with taller corner blocks (facing Piazza Apostoli) was constructed recalls earlier structures resembling a fortification.
The main gallery (completed 1703) and the masterful Colonna art collection was acquired after 1650 by both the cardinal Girolamo I Colonna and his nephew the Connestabile Lorenzo Onofrio Colonna and includes works by Lorenzo Monaco, Domenico Ghirlandaio, Palma the Elder, Salviati, Bronzino, Tintoretto, Pietro da Cortona, Annibale Carracci (painting of The Beaneater), Guercino, Francesco Albani, Muziano and Guido Reni. Ceiling frescoes by Filippo Gherardi, Giovanni Coli, Sebastiano Ricci, and Giuseppe Bartolomeo Chiari celebrate the role of Marcantonio II Colonna in the battle of Lepanto (1571). The gallery is open to the public on Saturday mornings.
The older wing of the complex known as the Princess Isabelle"s apartments, but once housing Martin V"s library and palace, contains frescoes by Pinturicchio, Antonio Tempesta, Crescenzio Onofri, Giacinto Gimignani, and Carlo Cesi. It contains a collection of landscapes and genre scenes by painters like Gaspard Dughet, Caspar Van Wittel (Vanvitelli), and Jan Brueghel the Elder.
Along with the possessions of the Doria-Pamphilij and Pallavacini-Rospigliosi families, this is one of the largest private art collections in Rome.