Bern became Switzerland's federal capital on November 28, 1848, when the Federal Assembly chose it over Zurich and Lucerne after prolonged debate. The decision followed the brief Sonderbund War of 1847 and the establishment of modern Switzerland as a federal state. Bern won partly because of its central location and partly because Zurich was seen as too economically dominant, which made smaller cantons uncomfortable. The city serves as de facto capital—Switzerland formally has no capital city in its constitution, only a "federal city" (Bundesstadt). This distinction reflects Swiss federalism: Bern hosts federal government buildings but other cities hold federal courts and institutions. The Federal Palace (Bundeshaus) opened in 1902 after decades of construction. Its central dome rises 64 meters above the Aare River, which loops around Bern's Old City peninsula in a nearly complete horseshoe. Architect Hans Wilhelm Auer designed the complex in Italian Renaissance Revival style with a green copper dome visible across the city. The Federal Assembly meets here: the National Council with 200 members and the Council of States with 46 members, representing Switzerland's bicameral parliament.
Bern's Old City received UNESCO World Heritage designation in 1983 for its medieval urban plan, which remains largely intact from the 12th century. Duke Berchtold V of Zähringen founded Bern in 1191 according to historical records, though legend says he named it after shooting a bear (Bär in German). The city expanded eastward in planned stages: the Zähringer city from 1191, the first expansion around 1255, the second expansion around 1345, and the third expansion reaching today's railway station area by 1622. Arcades called Lauben run for six kilometers through the Old City, creating covered walkways that date mostly to the 15th century after a 1405 fire destroyed much of the wooden medieval town. These arcades shelter shops, cafes, and cellars used for storage and restaurants. The Old City's sandstone buildings use local stone quarried from the Ostermundigen region east of Bern. After fires in 1405 and smaller blazes through the 16th century, authorities mandated stone construction and red tile roofs, creating the uniform appearance that persists. The Zytglogge clock tower marks the city's western gate from the 1191 founding. Its astronomical clock, installed in 1530 by clockmaker Kaspar Brunner, still performs its mechanical parade four minutes before each hour: a jester rings bells, roosters crow, bears march, and Father Time turns his hourglass while a golden knight counts the hour.
The Aare River drops from 542 meters elevation at Thun to 481 meters at Bern, creating a swift current that shapes the city's geography. The Old City sits on a peninsula measuring roughly 500 meters wide and one kilometer long, surrounded on three sides by the Aare flowing in deep gorges 30 to 40 meters below street level. This natural moat provided medieval defense and still limits urban expansion. Six bridges connect the Old City to surrounding districts. The Kirchenfeld Bridge, completed in 1883, spans 229 meters with a deck 36 meters above the river, linking the Old City to the Kirchenfeld district where museums cluster. The Kornhaus Bridge, built 1895-1898, carries trams and traffic on a 240-meter stone arch span. Water temperature in the Aare ranges from 8 degrees Celsius in winter to 18 degrees in summer. Despite cold temperatures and swift current averaging 100 cubic meters per second flow through Bern, locals swim in the Aare during summer months, entering at designated points and floating downstream to exit points. Marzili Baths opened in 1783 on the river's edge below the Old City, making it one of Europe's oldest river swimming facilities still operating.
Bern Minster (Berner Münster) construction began in 1421 under master builder Matthäus Ensinger of Ulm, though the church was not consecrated until 1571 during the Reformation. The spire reached completion only in 1893, making it Switzerland's tallest church tower at 100.6 meters. The cathedral remained Catholic until 1528, when Bern officially adopted Huldrych Zwingli's Reformation. Reformers removed most decorative elements, but the Last Judgment portal above the main entrance survived—its 234 painted figures carved between 1460 and 1501 show heaven, hell, and purgatory in explicit medieval detail. The portal's central figure of Christ measures 3.5 meters tall. Inside, the church measures 84.2 meters long and 33.7 meters wide at the transept. Windows installed between 1441 and 1450 show medieval stained glass technique, though many panels are 19th century replacements. The church holds Switzerland's largest bell, cast in 1611, weighing approximately 10,000 kilograms. Climbing the tower requires ascending 344 steps through increasingly narrow stone staircases; platforms at various heights offer views, with the highest public platform at 100 meters providing sight across the Old City, the Bernese Alps to the south, and the Jura Mountains to the north.
The Federal Palace complex covers 54,000 square meters including courtyards and surrounding gardens. The central parliamentary building cost 7.198 million Swiss francs when completed in 1902—a sum equal to roughly 1.5 billion francs in 2020 purchasing power. The National Council chamber seats 200 members in a semicircular arrangement facing a podium where speakers address the assembly. The chamber's ceiling mosaic shows the Latin motto "Unus pro omnibus, omnes pro uno" (One for all, all for one), though this was never formally adopted as national motto despite popular belief. The Council of States chamber accommodates 46 members representing Switzerland's 26 cantons. The Federal Council, Switzerland's seven-member executive, meets in the Bundesratszimmer with wood paneling from Swiss oak and walnut. Public tours run when parliament is not in session; visitors pass through security in the newer parliamentary annex completed in 1993. The plaza in front of the Federal Palace, Bundesplatz, hosts markets on Tuesday and Saturday mornings year-round. The plaza's 26 water fountains, one per canton, operate from May through October. The water show runs hourly, choreographed to music in evening performances during summer.
Bern's rose garden (Rosengarten) sits on Schönberg hill northeast of the Old City at 528 meters elevation. The site held a cemetery until 1913, when landscape architect Lorenz Preis redesigned it as public park. The garden now maintains 223 rose varieties, 200 iris varieties, and 28 rhododendron varieties labeled by name and origin. Peak bloom runs from June through September. The park's viewing terrace overlooks the Old City from 50 meters above the Aare, providing the signature view used in Bern tourism photography: the cathedral spire rising among red roofs with Alps behind on clear days. The Gurten mountain southwest of central Bern reaches 864 meters elevation. A funicular railway opened in 1899 transports visitors from Wabern station at 565 meters to the summit at 858 meters in five minutes, climbing a 28 percent grade. The railway cars were replaced in 1996 but the original track and station buildings remain. The summit offers 360-degree views: the Bernese Alps including Eiger, Mönch, and Jungfrau roughly 50 kilometers south, Pilatus 85 kilometers southwest, and on exceptional days Mont Blanc 180 kilometers west. A steel observation tower built in 2010 adds another 12 meters of height for those willing to climb its 104 steps.