The Navy Museum is a maritime museum in Lisbon, dedicated to all aspects of the history of navigation in Portugal. It occupies a part of the neo-Manueline Western wing of the Jerónimos Monastery with the National Museum of Archaeology, as well as a modern annex built to the North of the monastery.
The history of the museum is connected to King Luís I (1838-1889), who had a strong interest in oceanographic studies and an accomplished navigator himself. In 1863, he began collecting items related to the preservation of maritime history of Portugal, a collection that was enlarged in the following decades, culminating in the inauguration of the Maritime Museum in 1963 in its present location.
The exhibits include historical paintings, archaeological items and many scale models of ships used in Portugal since the 15th century, a collection of navigations instruments and maps, royal barges, as well as the Fairey III 'Santa Cruz' that crossed the Atlantic in 1923, and the Portuguese Navy's first aircraft, an FBA Type B flying boat.
References:The Petersberg Citadel is one of the largest extant early-modern citadels in Europe and covers the whole north-western part of the Erfurt city centre. It was built after 1665 on Petersberg hill and was in military use until 1963. It dates from a time when Erfurt was ruled by the Electors of Mainz and is a unique example of the European style of fortress construction. Beneath the citadel is an underground maze of passageways that can be visited on guided tours organised by Erfurt Tourist Office.
The citadel was originally built on the site of a medieval Benedictine Monastery and the earliest parts of the complex date from the 12th century. Erfurt has also been ruled by Sweden, Prussia, Napoleon, the German Empire, the Nazis, and post-World War II Soviet occupying forces, and it was part of the German Democratic Republic (East Germany). All of these regimes used Petersberg Citadel and had an influence on its development. The baroque fortress was in military use until 1963. Since German reunification in 1990, the citadel has undergone significant restoration and it is now open to the public as a historic site.