What is the United States Capitol building?

The United States Capitol building serves as the home of the United States Congress, which is the legislative branch of the federal government. This iconic structure is where both the Senate and the House of Representatives conduct their business, making it fundamentally a legislative chamber. The Capitol is significant not only for its architectural beauty but also as a symbol of American democracy and governance, representing the law-making process of the nation.

In contrast, an executive office refers to buildings where executive functions of the government are carried out, such as the White House. Similarly, a judicial chamber pertains to courtrooms where judicial proceedings take place, which is different from the legislative function. A residential building, as the term suggests, is intended for living purposes, making it unrelated to the political and legislative activities associated with the Capitol.