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Located at the north end of Lake Traunsee, a lake in the Salzkammergut, Upper Austria, Austria. Its surface is approximately 24.5 km2 and its maximum depth of 191 metres makes it the deepest and by volume largest lake located entirely within Austrian territory; only Lake Constance on the border is deeper and bigger. It is a popular tourist destination, and its attractions include Schloss Ort, a medieval castle. The lake is surrounded by mountains, including the Traunstein, and a number of other towns and villages surround the lake, including Altmünster and Traunkirchen. Gmunden has a population of over 13,000 residents.

London is the capital and largest city of both England and the United Kingdom, with a population of 8,866,180 in 2022. The wider metropolitan area is the largest in Western Europe, with a population of 14.9 million. London stands on the River Thames in southeast England, at the head of a 50-mile (80 km) estuary down to the North Sea, and has been a major settlement for nearly 2,000 years. Its ancient core and financial centre, the City of London, was founded by the Romans as Londinium and has retained its medieval boundaries. The City of Westminster, to the west of the City of London, has been the centuries-long host of the national government and parliament. London grew rapidly in the 19th century, becoming the world's largest city at the time.

As one of the world's major global cities, London exerts a strong influence on world art, entertainment, fashion, commerce, finance, education, healthcare, media, science, technology, tourism, transport, and communications. Despite a post-Brexit exodus of stock listings from the London Stock Exchange, London remains Europe's most economically powerful city and one of the world's major financial centres. It hosts Europe's largest concentration of higher education institutions, some of which are the highest-ranked academic institutions in the world: Imperial College London in natural and applied sciences, the London School of Economics in social sciences, and the comprehensive University College London. It is the most visited city in Europe and has the world's busiest city airport system. The London Underground is the world's oldest rapid transit system.

Frankfurt am Main is the most populous city in the German state of Hesse. Its 773,068 inhabitants as of 2022 make it the fifth-most populous city in Germany. Located in the foreland of the Taunus on its namesake Main, it forms a continuous conurbation with Offenbach am Main; its urban area has a population of over 2.7 million. The city is the heart of the larger Rhine-Main metropolitan region, which has a population of more than 5.8 million and is Germany's second-largest metropolitan region after the Rhine-Ruhr region and the fourth biggest metropolitan region by GDP in the European Union. Frankfurt is home to the European Central Bank, one of the institutional seats of the European Union, while Frankfurt's central business district lies about 90 km northwest of the geographic center of the EU at Gadheim in Lower Franconia. Like France and Franconia, the city is named after the Franks. Frankfurt is the largest city in the Rhenish Franconian dialect area.

Budweis is a city in the South Bohemian Region of the Czech Republic. It has about 97,000 inhabitants. The city is located in the valley of the Vltava River, at its confluence with the Malše. České Budějovice is the largest city in the region and its political and commercial capital, the seat of the Roman Catholic Diocese of České Budějovice and the University of South Bohemia. It is famous for the Budweiser Budvar Brewery. The historic city centre is well preserved and is protected as an urban monument reservation.

Paris is the capital and largest city of France. With an official estimated population of 2,102,650 residents in January 2023 in an area of more than 105 km2 (41 sq mi), Paris is the fourth-largest city in the European Union and the 30th most densely populated city in the world in 2022. Since the 17th century, Paris has been one of the world's major centres of finance, diplomacy, commerce, culture, fashion, and gastronomy. For its leading role in the arts and sciences, as well as its early and extensive system of street lighting, in the 19th century, it became known as the City of Light.

The City of Paris is the centre of the Île-de-France region, or Paris Region, with an official estimated population of 12,271,794 inhabitants in January 2023, or about 19% of the population of France. The Paris Region had a nominal GDP of €765 billion (US$1.064 trillion when adjusted for PPP) in 2021, the highest in the European Union. According to the Economist Intelligence Unit Worldwide Cost of Living Survey, in 2022, Paris was the city with the ninth-highest cost of living in the world.