National Congress of Belgium in the context of "Palace of the Nation"

The Congress Column (French: Colonne du Congrès [kɔlɔn dy kɔ̃ɡʁɛ]; Dutch: Congreskolom [kɔŋˈɣrɛskoːˌlɔm]) is a monumental column in Brussels, Belgium, commemorating the creation of the Belgian Constitution by the National Congress of 1830–31. Inspired by Trajan's Column in Rome, it was erected between 1850 and 1859, on the initiative of the then-Prime Minister of Belgium, Charles Rogier, according to a design by the architect Joseph Poelaert. At the top of the column is a statue of Belgium's first monarch; King Leopold I, and at its base, the pedestal is surrounded by statues personifying the four freedoms guaranteed under the Constitution. The Belgian Tomb of the Unknown Soldier with an eternal flame lies at its foot.

The column is located on the Place du Congrès/Congresplein; a small square adjacent to the Rue Royale/Koningsstraat, in the Freedom Quarter. This area is served by Brussels-Congress railway station, the metro stations Parc/Park (on lines 1 and 5) and Botanique/Kruidtuin (on lines 2 and 6), as well as the tram stop Congrès/Congres on lines 92 and 93.

The national flag of the Kingdom of Belgium is a tricolour consisting of three equal vertical bands displaying the national colours: black, yellow, and red. The colours were taken from the coat of arms of the Duchy of Brabant, and the vertical design may be based on the flag of France. When flown, the black band is nearest the pole (at the hoist side). It has the unusual proportions of 13∶15, and therefore, unlike the flags of Switzerland and the Vatican City, it is not a perfect square.

In 1830, the flag, at that time non-officially, consisted of three horizontal bands, with the colors red, yellow and black. On 23 January 1831, the National Congress enshrined the tricolor in the Constitution, but did not determine the direction and order of the color bands. As a result, the "official" flag was given vertical stripes with the colors black, yellow and red.