Final answer:
Sugarloaf Mountain is a famous landmark that can be seen from the harbor of Rio de Janeiro, Brazil, known for its breathtaking views.
Step-by-step explanation:
Sugarloaf Mountain can be observed from the harbor of Rio de Janeiro, Brazil. This iconic peak rises at the mouth of Guaraná Bay and is one of Rio's most famous landmarks. From the harbor, tourists and locals alike can enjoy the stunning view of Sugarloaf, especially during the sun set when the sky often paints a beautiful backdrop behind the mountain's silhouette.