The Congress of Vienna in 1814-1815 is best known for accomplishing which of the following?

The Congress of Vienna did not focus on restoring any specific form of governance in Great Britain, where constitutional monarchy was already established. Instead, the Congress sought to address the broader European landscape by ensuring stability and balance, rather than altering Britain's political system.

While European powers did engage in the colonization of Africa during the 19th century, the Congress of Vienna was not responsible for this division. The scramble for Africa occurred later, particularly in the late 1800s, and was driven by different political and economic motivations than those addressed at the Congress.

The unification of Italy was a complex process that took place in the latter half of the 19th century, largely influenced by leaders like Giuseppe Garibaldi and Count Cavour. The Congress of Vienna did not aim to unify Italy but rather to maintain the status quo in Europe, which included preserving the various independent states within the Italian peninsula.