Puerto Rico is the easternmost member of the archipelago of the Greater Antilles. The island country is an associated state of the United States of America. The main island is Puerto Rico, which has two important neighbouring islands, Vieques and Culebra, as well as other smaller islands.

On a European scale Montenegro is a relatively rarely inhabited area in the Dinaric Alps. Steep hillsides divided by bays follow its shore along the Adriatic coast. The largest is the Bay of Kotor. The Montenegrin coast is located in the southeastern part of the Adriatic Sea, between Croatia and Albania.

Puerto Rico is the easternmost member of the archipelago of the Greater Antilles. The island country is an associated state of the United States of America. The main island is Puerto Rico, which has two important neighbouring islands, Vieques and Culebra, as well as other smaller islands.