Halle aux blés (Paris)

The Halle aux blés, or Grains Exchange, is a historic circular building in central Paris, originally constructed between 1763 and 1767 for grain trading. Notable for its impressive wooden dome completed in 1783, which was later replaced by an iron dome in 1811, the structure served as a bustling marketplace for grain and flour until its closure in 1873. Its architectural design influenced public buildings in both Britain and the United States, with Thomas Jefferson admiring its dome and incorporating similar elements into American architecture. Today, the building stands as a testament to Paris's rich commercial history and architectural innovation.