Port Moresby

Port Moresby is the capital and largest city of Papua New Guinea (PNG). It is located on the shores of the Gulf of Papua, on the southeastern coast of the Papuan Peninsula of the island of New Guinea. The city emerged as a trade centre in second half of the 19th century. During World War II it was a prime objective for conquest by the Imperial Japanese forces during 1942–43 as a staging point and air base to cut off Australia from Southeast Asia and the Americas. In 2000 it had a population of 254,158. As of 2011 it has a population of 364,145, giving it an annual growth rate of 2.1% over a nine-year period. The place where the city was founded has been inhabited by the Motu-Koitabu people for centuries. The first European to see it was Captain John Moresby in 1873. It was named in honour of his father, Admiral Sir Fairfax Moresby. Although Port Moresby is surrounded by Central Province, of which it is also the capital, it is not part of that province, but forms the National Capital District.

Rabaul

Rabaul is a township in East New Britain province, on the island of New Britain, in the country of Papua New Guinea. New Britain is an island about 60 kilometres to the east of the island of New Guinea. Rabaul was the provincial capital and most important settlement in the province until it was destroyed in 1994 by falling ash of a volcanic eruption. During the eruption, ash was sent thousands of metres into the air and the subsequent rain of ash caused 80% of the buildings in Rabaul to collapse. After the eruption the capital was moved to Kokopo, about 20 kilometres (12 mi) away. Rabaul is continually threatened by volcanic activity due to having been built on the edge of Rabaul caldera, a flooded caldera of a large pyroclastic shield. Rabaul was known as Simpsonhafen during the German New Guinea administration which controlled the area between 1884 and formally till 1919. From 1910 Rabaul was the headquarters of German New Guinea until captured by the British Empire during World War I, when it became the capital of the Australian mandated Territory of New Guinea until 1937 when it was first destroyed by volcano.

Milne Bay

Milne Bay is a large bay in Milne Bay Province, southeastern Papua New Guinea. More than 35 kilometers long and over 15 kilometers wide, Milne Bay is a sheltered deep-water harbour, surrounded by the heavily wooded Stirling Range to the north and south, and on the northern shore, a narrow coastal strip, soggy with sago and mangrove swamps. The bay is named after Sir Alexander Milne.

Lae

Lae is the capital of Morobe Province and is the second-largest city in Papua New Guinea. It is located at the start of the Highlands Highway, which is the main land transport corridor from the Highlands region to the coast and near the delta of the Markham River. Lae is the largest cargo port of the country and is the industrial city for Papua New Guinea. The city is known as the Garden City and home of the University of Technology. 

Manus Island

Manus Island is part of Manus Province in northern Papua New Guinea and is the largest island of the Admiralty Islands. It is the fifth largest island in Papua New Guinea with an area of 2,100 km², measuring around 100 km × 30 km. According to the 2000 census, the whole Manus Province had a population of 43,387, rising to 50,321 as of 2011 Census. Lorengau, the capital of Manus Province, is located on the island. Momote Airport, the terminal for Manus Province, is located on nearby Los Negros Island. A bridge connects Los Negros to Manus Island and the province capital of Lorengau. In addition to its resident population, asylum seekers have been relocated here from Australia between 2001-2004 and since 2012.