Cologne is the largest city of the German state of North Rhine-Westphalia and the fourth-most populous city of Germany with nearly 1.1 million inhabitants in the city proper and over 3.1 million people in the Cologne Bonn urban region. Cologne is also part of the Rhine-Ruhr metropolitan region, the second biggest metropolitan region by GDP in the European Union. Centered on the left (west) bank of the Rhine, Cologne is located on the River Rhine, about 35 km (22 mi) southeast of the North Rhine-Westphalia state capital Düsseldorf and 25 km (16 mi) northwest of Bonn, the former capital of West Germany.
Central Plaza is a 78-storey, 374 m (1,227 ft) skyscraper at 18 Harbour Road, in Wan Chai on Hong Kong Island in Hong Kong. Completed in August 1992, it is the third tallest tower in the city after 2 International Finance Centre in Central and the International Commerce Centre in West Kowloon. It was the tallest building in Asia from 1992 to 1996, until the Shun Hing Square was built in Shenzhen, a neighbouring city. Central Plaza surpassed the Bank of China Tower as the tallest building in Hong Kong until the completion of 2 IFC.
A skyscraper is a tall continuously habitable building having multiple floors. Modern sources define skyscrapers as being at least 100 meters (330 ft) or 150 meters (490 ft) in height, though there is no universally accepted definition, other than being very tall high-rise buildings. Skyscrapers may host offices, hotels, residential spaces, and retail spaces.
La Défense is a major business district in France's Paris metropolitan area, 3 kilometres (1.9 mi) west of the city limits. It is located in Île-de-France region's department of Hauts-de-Seine in the communes of Courbevoie, La Garenne-Colombes, Nanterre, and Puteaux.
Cologne Cathedral is a cathedral in Cologne, North Rhine-Westphalia belonging to the Catholic Church. It is the seat of the Archbishop of Cologne and of the administration of the Archdiocese of Cologne. It is a renowned monument of German Catholicism and Gothic architecture and was declared a World Heritage Site in 1996. It is Germany's most visited landmark, attracting an average of 6 million people a year. At 157 m (515 ft), the cathedral is the tallest twin-spired church in the world, the second tallest church in Europe after Ulm Minster, and the third tallest church of any kind in the world.
The Petronas Towers, also known as the Petronas Twin Towers and colloquially the KLCC Twin Towers, are an interlinked pair of 88-storey supertall skyscrapers in Kuala Lumpur, Malaysia, standing at 451.9 metres. From 1996 to 2004, they were the tallest buildings in the world until they were surpassed by the Taipei 101 building. The Petronas Towers remain the world's tallest twin skyscrapers, surpassing the original World Trade Center towers in New York City, and were the tallest buildings in Malaysia until 2019, when they were surpassed by The Exchange 106. The Petronas Towers are a major landmark of Kuala Lumpur, along with the nearby Kuala Lumpur Tower and Merdeka 118, and are visible in many places across the city.
Commerzbank Tower is a 56-story, 259 m (850 ft) skyscraper in the banking district of Frankfurt, Germany. An antenna spire with a signal light on top gives the tower a total height of 300.1 m (985 ft). It is the tallest building in Frankfurt and the tallest building in Germany. It had been the tallest building in Europe from its completion in 1997 until 2003, when it was surpassed by the Triumph-Palace in Moscow. Since the departure of the United Kingdom from the European Union, the tower had briefly reclaimed its position as the tallest building in the European Union only to lose the title again in 2021 when Poland's Varso Tower topped out. The Commerzbank Tower is only two metres taller than the Messeturm, which is also located in Frankfurt and was the tallest building in Europe before the construction of the Commerzbank Tower.
The Home Insurance Building was a skyscraper that stood in Chicago from 1885 to its demolition in 1931. Originally ten stories and 138 ft (42.1 m) tall, it was designed by William Le Baron Jenney in 1884 and completed the next year. Two floors were added in 1891, bringing its now finished height to 180 feet. It was the first tall building to be supported both inside and outside by a fireproof structural steel frame, though it also included reinforced concrete. It is considered the world's first skyscraper.
One Canal Place, located at 365 Canal Street in the Central Business District of New Orleans, Louisiana, is a 32-story, 440 feet (134 m)-tall skyscraper. The building contains The Shops at Canal Place and is attached to the Westin New Orleans Canal Place hotel, with which it shares a parking garage.
Cologne/Bonn Airport station is a station at Cologne Bonn Airport in the German state of North Rhine-Westphalia. It was built as part of the Cologne–Frankfurt high-speed rail line and opened in June 2004 on the approximately 15-kilometre-long (9.3 mi) Cologne Airport loop line. It is served by Intercity-Express (ICE), Rhine-Ruhr S-Bahn and regional services.
The Cologne Ring is a semi-circular, some 6 km long urban boulevard in Innenstadt, Cologne and the city's busiest and most prominent street system. The Cologne Ring is a four lane street and part of Bundesstraße 9.
Ordensburg Vogelsang is a former Nazi complex located within the former military training area of Vogelsang in the Eifel National Park in North Rhine-Westphalia.
Colonia Claudia Ara Agrippinensium was the Roman colony in the Rhineland from which the city of Cologne, now in Germany, developed.
The Houston Tower was a plan for a 500-story skyscraper conceived in the 1970s to be built in Houston, originally designed as a research project for the feasibility of a 500-story building. American Architect Robert B. Sobel of Emery Roth & Sons, with engineer and fellow American Nat W. Krahl of Rice University, created a concept for a 500-story building made from 200-foot sided bundled triangular tubes. Sobel had theorized the construction of a 500-story building as early as 1947.
The tallest building in the world, as of 2024, is the Burj Khalifa in Dubai. The title of "world's tallest building" has been held by various buildings in modern times, including Lincoln Cathedral in Lincoln, England, and the Empire State Building and the original World Trade Center, both in New York City.
Cologne Charterhouse was a Carthusian monastery or charterhouse established in the Severinsviertel district, in the present Altstadt-Süd, of Cologne, Germany. Founded in 1334, the monastery developed into the largest charterhouse in Germany until it was forcibly dissolved in 1794 by the invading French Revolutionary troops. The building complex was then neglected until World War II, when it was mostly destroyed. The present building complex is very largely a post-war reconstruction. Since 1928, the Carthusian church, dedicated to Saint Barbara, has belonged to the Protestant congregation of Cologne.
The Weltstadthaus, housing a department store in Cologne, Germany, was designed by Renzo Piano and completed in 2005, following a lengthy legal battle concerning the structural engineering of the core building. It covers up a main traffic artery, the Nord-Süd-Fahrt, and faces Europe's most frequented shopping mile, the Schildergasse.
The earliest stage of skyscraper design encompasses buildings built between 1884 and 1945, predominantly in the American cities of New York and Chicago. Cities in the United States were traditionally made up of low-rise buildings, but significant economic growth after the American Civil War and increasingly intensive use of urban land encouraged the development of taller buildings beginning in the 1870s. Technological improvements enabled the construction of fireproofed iron-framed structures with deep foundations, equipped with new inventions such as the elevator and electric lighting. These made it both technically and commercially viable to build a new class of taller buildings, the first of which, Chicago's 138-foot (42 m) tall Home Insurance Building, opened in 1885. Their numbers grew rapidly, and by 1888 they were being labelled "skyscrapers".
