Heinzenberg Castle was built on the western side of the Domleschg Valley in the 12th century by the Freiherr von Vaz. In contrast to the small landholdings of other castles in the region, Heinzenberg was the political and judicial center over much of the valley. Though the first mention of the castle was in 1394, by 1380 the name was applied to the river and the entire side of the valley. The castle was the center of the Vaz family's power in the region until the extinction of the line in 1337-38.
After the extinction of the Vaz, the castle passed to Count Rudolph IV von Werdenberg-Sargans. His son Johann sold it in 1383 to Ulrich Bran von Rhäzüns. In 1450 there was a dispute over inheritance in the Rhäzüns family, the imperial court at Rottweil assigned Heinzenberg to Ursula von Hohenberg, a member of the Rhäzüns family. The castle was damaged in 1451-52 during fighting in the nearby Schams part of the valley. In 1461 the castle returned to the Werdenberg-Sargans family. In 1475 the Heinzenberg lands, except for the castle, was sold to the Bishop of Chur. In 1482 there was a Werdenberg vogt resident in the castle. After the death of Count Georg von Werdenberg-Sargans in 1504, it was abandoned and fell into ruin.
The castle was built on a narrow, rocky outcropping below the village of Präz, on the slopes above the valley. A ditch protects the relatively flat mountain side of the outcropping. The tower has a pentagon shaped floor plan and today is about three stories tall. Before its partial collapse in 1956 the tower was a total of six stories high. It was crowned with battlements and topped with a wooden roof. A second construction phase added a ring wall around the tower. The west part of the ring wall is still standing. The remains of a southern wall show that a several story tall residence probably stood there.References:
The Seaplane Harbour is the newest and one of the most exciting museums in Tallinn. It tells stories about the Estonian maritime and military history. The museum’s display, that comprises of more than a couple of hundred large exhibits, revitalizes the colourful history of Estonia.
British built submarine Lembit weighing 600 tones is the centrepiece of the new museum. Built in 1936 for the Estonian navy, Lembit served in the World War II under the Soviet flag. It remained in service for 75 years being the oldest submarine in the World still in use until it was hauled ashore in 2011. Despite its long history, Lembit is still in an excellent condition offering a glimpse of the 1930s art of technology.
Another exciting attraction is a full-scale replica of Short Type 184, a British pre-World War II seaplane, which was also used by the Estonian armed forces. Short Type 184 has earned its place in military history by being the first aircraft ever to attack an enemy’s ship with an air-launched torpedo. Since none of the original seaplanes have survived, the replica in Seaplane Harbour is the only full-size representation of the aircraft in the whole World.
Simulators mimicking a flight above Tallinn, around-the-world journey in the yellow submarine, navigating on the Tallinn bay make this museum heaven for kids or adventurous adults.
Seaplane Harbour operates in architecturally unique hangars built almost a century ago, in 1916 and 1917, as a part of Peter the Great sea fortress. These hangars are the World’s first reinforced concrete shell structures of such a great size. Charles Lindbergh, the man who performed the first solo flight across the Atlantic Ocean, landed here in 1930s.
On the outdoor area visitors can tour a collection of historic ships, including the Suur Tõll, Europe's largest steam-powered icebreaker.