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Czechia Medieval Built: from 870 AD Standing

Prague Castle

Prague Castle is the largest coherent castle complex in the world, sprawling across 70,000 square metres on a promontory above the Vltava River and encompassing not merely a fortress but an entire walled city of palaces, churches, monasteries, galleries, gardens, and the official residence of the Czech head of state. Founded around 870 AD by Prince Bořivoj of the Přemyslid dynasty, it has been continuously inhabited and expanded by Bohemian kings, Holy Roman Emperors, and Czechoslovak and Czech presidents for over eleven centuries. Its skyline is dominated by the Gothic spires of St. Vitus Cathedral, begun in 1344 and not completed until 1929 — a construction project spanning nearly 600 years. The castle district contains the Bohemian Crown Jewels, the tomb of Saint Wenceslas, the remains of Leonardo da Vinci's contemporary Tycho Brahe, and the Golden Lane of tiny colourful houses once inhabited by alchemists and castle marksmen.

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Prague Castle

Czechia

Longitude: 14.4003

Latitude: 50.0911

Historical Significance

Prague Castle has been the seat of Bohemian and Czech political power for over a millennium, serving as the nerve centre of the Holy Roman Empire under Charles IV and Rudolf II, the symbolic heart of Czechoslovak independence after 1918, and the residence of presidents from Tomáš Masaryk to Václav Havel. Its layered architecture — Romanesque chapels beneath Gothic halls beneath Renaissance and Baroque palaces — makes it an unbroken physical record of Central European history from the early medieval period to the present day.

Facts

Fact 1

World's Largest Castle Complex

At approximately 70,000 square metres (about 7 hectares), Prague Castle holds the Guinness World Record as the largest ancient castle complex in the world — roughly the size of seven football pitches — encompassing streets, squares, and gardens within its walls.

Fact 2

St. Vitus Cathedral — A 585-Year Construction

Construction of St. Vitus Cathedral began in 1344 under Charles IV and was not officially completed until 1929, making it a building whose construction spanned 585 years and multiple architectural styles from French Gothic to neo-Gothic revival.

Fact 3

Tycho Brahe's Tomb

The great Danish astronomer Tycho Brahe, who served as Imperial Mathematician to Holy Roman Emperor Rudolf II, is buried inside St. Vitus Cathedral; analysis of his remains in 2010 confirmed that his death in 1601 was caused by kidney failure, not mercury poisoning as long suspected.

Fact 4

The Defenestration That Started a War

In 1618, Protestant Bohemian nobles threw three Catholic royal officials from a window of the castle's Bohemian Chancellery — the Third Defenestration of Prague — an act that directly triggered the Thirty Years' War, one of the most destructive conflicts in European history.

Fact 5

Rudolf II's Cabinet of Curiosities

Holy Roman Emperor Rudolf II made Prague Castle the centre of European intellectual life in the late 16th century, assembling an extraordinary Wunderkammer (cabinet of curiosities) of art, automata, exotic animals, and scientific instruments that attracted figures including Brahe, Kepler, and Arcimboldo.

Fact 6

The Changing of the Guard

The ceremonial Changing of the Guard takes place every hour at the castle's main gate and at noon features a fanfare composed by the jazz musician Michal Kocáb at the personal request of President Václav Havel following the Velvet Revolution in 1989.

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