and built a residential and commercial building in 1843 to house the emigrant press of Bellevue, which had previously been located in Römerburg. In 1857, Ludwig Binswanger, a psychiatrist from Münsterlingen acquired the property and opened a private sanatorium. The clinic was very modern and remained in the control of the Binswanger family for nearly 120 years. Important psychiatric advances, particularly under the founder's grandson, also called Ludwig Binswanger, especially in the development of existential psychotherapy, were made at the sanatorium. However, few of its buildings remain. Geography Kreuzlingen has an area, , of . Of this area, or 27.2% is used for agricultural purposes, while or 28.2% is forested. Of the rest of the land, or 42.4% is settled (buildings or roads), or 1.0% is either rivers or lakes and or 1.1% is unproductive land. Of the built-up area, industrial buildings made up 22.3% of the total area while housing and buildings made up 5.7% and transportation infrastructure made up 0.7%. Power and water infrastructure as well as other special developed areas made up 5.3% of the area while parks, green belts and sports fields made up 8.4%. Out of the forested land, 26.8% of the total land area is heavily forested and 1.4% is covered with orchards or small clusters of trees. Of the agricultural land, 25.1% is used for growing crops, while 2.2% is used for orchards or vine crops. All the water in the municipality is in lakes. Of the unproductive areas, 1.1% is unproductive vegetation and . The municipality is located in the Kreuzlingen district on the border with the German city of Konstanz. It is located on Lake Constance where it narrows to form the Untersee, bordering with Konstanz in Germany. It is halfway between Schaffhausen and Rorschach on a slightly southward-dipping west–east axis. It consists of the former villages of Bernrain, Egelshofen, Emmishofen and Kurzrickenbach. Demographics Kreuzlingen has a population () of . , 48.1% of the population are foreign nationals. Over the last 10 years (1997–2007) the population has changed at a rate of 2.2%. Most of the population () speaks German (79.7%), with Italian being second most common (5.2%) and Albanian being third (3.8%). , the gender distribution of the population was 49.2% male and 50.8% female. The population was made up of 4,409 Swiss men (23.8% of the population), and 4,715 (25.5%) non-Swiss men. There were 5,208 Swiss women (28.1%),