The Rijksmuseum is a Dutch national museum dedicated to arts and history in Amsterdam. The museum has on display 8,000 objects of art and history, from their total collection of 1 million objects from the years 1200–2000. The collection contains more than 2,000 paintings from the Dutch Golden Age by notable painters such as Jacob Isaakszoon van Ruisdael, Frans Hals, Johannes Vermeer, Jan Steen, Rembrandt, and Rembrandt's pupils. Probably the most well known pieces of art are The Milkmaid (c. 1658) painted by Johannes Vermeer and The Night Watch (1642) by Rembrandt.
The Rijksmuseum was founded in The Hague in 1800 and moved to Amsterdam in 1808, where it was first located in the Royal Palace and later in the Trippenhuis. The current main building was designed by Pierre Cuypers and first opened its doors in 1885. On 13 April 2013, after a ten-year renovation which cost € 375 million, the main building was reopened by Queen Beatrix. In 2013, it was the most visited museum in the Netherlands with a record number of 2.2 million visitors.
The museum has taken the unusual step of making some 125,000 high-resolution images available for download via its Rijks Studio software, with plans to add another 40,000 images per year until the entire collection of one million works is available, according to Taco Dibbits, director of collections.
References:The Walls of Constantinople are a series of defensive stone walls that have surrounded and protected the city of Constantinople (today Istanbul) since its founding as the new capital of the Roman Empire by Constantine the Great. With numerous additions and modifications during their history, they were the last great fortification system of antiquity, and one of the most complex and elaborate systems ever built. They were also the largest and strongest fortification in both the ancient and medieval world.
Initially built by Constantine the Great, the walls surrounded the new city on all sides, protecting it against attack from both sea and land. As the city grew, the famous double line of the Theodosian Walls was built in the 5th century. Although the other sections of the walls were less elaborate, they were, when well-manned, almost impregnable for any medieval besieger.