Groenoordhallen

The Council of International Schools (CIS) is a membership organization aimed at international education. It is the main membership organization for international schools worldwide.CIS was formed in 1949. It has over 1,360 institutional members consisting of over 740 schools and 610 colleges/universities, located in 122 countries. Membership is considered prestigious by schools. Many leading international schools in countries around the world are members. The services of CIS include international educational accreditation. CIS accreditation is considered important for expat schoolchildren and safeguarding of schoolchildren. The CIS headquarters are in Leiden, The Netherlands. There has also been a European Council of International Schools, established in 1965, now the Educational Collaborative for International Schools (ECIS).

De Valk is a tower mill and museum in Leiden, Netherlands. The current tower mill is the third mill built at this location. In 1611 the post mill "De Valck" was built, and in 1667 it was replaced by a wooden post mill. In 1743 a higher tower mill was built. De Valk originally was equipped with six mill stones. There were two dwellings in the mill, originally for the two owners, later for the miller and his assistant. In June 1966 the mill became a municipal museum. In 2000, the De Valk mill became operationally functional again and has been used for milling.

Museum De Lakenhal is the city museum of fine art and history in Leiden, Netherlands. One highlight is its collection of fijnschilder paintings from the Dutch Golden Age. Just like the city, the museum combines a classical appearance with a contemporary character. The broad collection ranges from early works by Rembrandt van Rijn and Lucas van Leyden's Last Judgement to modern classics of De Stijl and artworks created by contemporary artists such as Claudy Jongstra, Atelier van Lieshout and many others.

St. Joseph Church is the largest Roman Catholic parish church still in use in Leiden in the diocese of Rotterdam. It is also called the Herensingelkerk, because it is situated at the street called Herensingel. The church is a national heritage site and one of the tallest buildings in the centre of Leiden.

Rijksmuseum Boerhaave is a museum of the history of science and medicine, based in Leiden, Netherlands. The museum hosts a collection of historical scientific instruments from all disciplines, but mainly from medicine, physics, and astronomy. The museum is located in a building that was originally a convent in central Leiden. It includes a reconstructed traditional anatomical theatre. It also has many galleries that include the apparatus with which Heike Kamerlingh Onnes first liquefied helium (in Leiden), the electromagnet equipment used by Wander Johannes de Haas (a Leiden physicist) for his low-temperature research, and an example of the Leiden jar, among many other objects in the extensive collection. The museum is named after Herman Boerhaave, a Dutch physician and botanist who was famous in Europe for his teaching at Leiden and lived to a great age, receiving brilliant students from all over Europe, including Peter the Great, Voltaire and Linnaeus.

The Vrouwekerk ("Lady's Church") or Vrouwenkerk ("Ladies' Church"), originally known as the Onze-Lieve-Vrouwekerk ("Church of Our Lady"), was a 14th-Century church in the Dutch city of Leiden. In the early 17th Century, the church was attended by the Pilgrims (who left Leiden to settle in Plymouth Colony) as well as by the first colonists to settle on Manhattan.The ruined remains of this Gothic church are located on the Vrouwenkerkhof square opposite Museum Boerhaave, just north of the busy shopping street Haarlemmerstraat. The alley Vrouwenkerksteeg, which runs from the Haarlemmerstraat to the Vrouwenkerkhof, is also named after the Vrouwekerk church. The church remains have rijksmonument (national monument) status. In 2008-2009 the church underwent restoration. Carolus Clusius and Joseph Justus Scaliger were buried in the Vrouwekerk.

The Holy Spirit Orphanage (Dutch: Heilige Geest- of Arme Wees- en Kinderhuis) was an orphanage in the city of Leiden in the Netherlands. It is a Rijksmonument located on Hooglandse Kerkgracht 17B.

Museum Het Leids Wevershuis consists of one of the last remaining "weavers' homes" (1560) in Leiden, Netherlands. The exterior, the large antique loom (1830) and the interior, are testimony of the once flourishing textile industry (and trade) around Leiden, in particular during the 16th and 17th century, when many home weavers supplied the draper's guild with high quality woolen cloth.

The Leiden Weigh House (De Waag in Dutch) is a Rijksmonument located on Aalmarkt street (nr. 21). It was designed by Pieter Post around 1657 and opened in 1659. For centuries, merchants came here to weigh and trade a variety of goods. In addition to being a weigh house, the Leiden Weigh House has hosted a variety of engagements and stately celebrations over the centuries. Notably, Govert Bidloo converted an attic room into an autopsy room to study the human body.The weigh house was in use as an actual weigh house until 1972, when the last unit of cheese was sold. Nowadays, the building serves as a cultural monument, houses a bar and restaurant.

Leiden (Dutch: [ˈlɛidə(n)] (listen); in English and archaic Dutch also Leyden) is a city and municipality in the province of South Holland, Netherlands. The municipality of Leiden has a population of 119,713, but the city forms one densely connected agglomeration with its suburbs Oegstgeest, Leiderdorp, Voorschoten and Zoeterwoude with 206,647 inhabitants. The Netherlands Central Bureau of Statistics (CBS) further includes Katwijk in the agglomeration which makes the total population of the Leiden urban agglomeration 270,879, and in the larger Leiden urban area also Teylingen, Noordwijk, and Noordwijkerhout are included with in total 348,868 inhabitants. Leiden is located on the Oude Rijn, at a distance of some 20 kilometres (12 miles) from The Hague to its south and some 40 km (25 mi) from Amsterdam to its north. The recreational area of the Kaag Lakes (Kagerplassen) lies just to the northeast of Leiden. A university city since 1575, Leiden has been one of Europe's most prominent scientific centres for more than four centuries. Leiden is a typical university city, university buildings are scattered throughout the city and the many students from all over the world give the city a bustling, vivid and international atmosphere. Many important scientific discoveries have been made here, giving rise to Leiden's motto: ‘City of Discoveries’. The city houses Leiden University, the oldest university of the Netherlands, and Leiden University Medical Center. Leiden University is one of Europe's top universities, with thirteen Nobel Prize winners. It is a member of the League of European Research Universities and positioned highly in all international academic rankings. It is twinned with Oxford, the location of the United Kingdom's oldest university. Leiden University and Leiden University of Applied Sciences (Leidse Hogeschool) together have around 35,000 students. Modern scientific medical research and teaching started in the early 18th century in Leiden with Boerhaave. Leiden is a city with a rich cultural heritage, not only in science, but also in the arts. One of the world's most famous painters, Rembrandt, was born and educated in Leiden. Other famous Leiden painters include Lucas van Leyden, Jan van Goyen and Jan Steen.

Vrijplaats Koppenhinksteeg (Freespace on Koppenhinksteeg street) was a complex of buildings first squatted in 1968 in Leiden, the Netherlands. It took its name from the alley on which it was located and was run since the 1990s by the Vrijplaats Koppenhinksteeg Foundation. Various groups including Eurodusnie used the different spaces as a bar, café, a freeshop, a foundation to support undocumented migrants, an information centre, a library and a sports club. In 2010, the entire complex was evicted. From 2012 onwards a new space called the Vrijplaats Leiden (Freespace Leiden) was set up elsewhere.

The Hooglandse Kerk is a Gothic church in Leiden. Its earliest parts date back to the last quarter of the fourteenth century. Most of the current structure dates from the fifteenth century. The brick church was dedicated to St. Pancras and today serves parishioners of the Protestant Church in the Netherlands.