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Greece » Corfu Corfu is one of the islands in the Ionian archipelago off the west coast of Greece. The island's population was 101,600 in 2021. Within the Ionian archipelago, the Corfu administrative unit extends south to Paxoi. Its capital and largest city is also named Corfu. |

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Egypt » Alexandria The Lighthouse of Alexandria was a lighthouse built by the Ptolemaic Kingdom of ancient Egypt on the Egyptian island of Pharos, during the reign of Ptolemy II Philadelphus (280–247 BC). It is estimated that it was at least 100 meters (330 ft) tall. |

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Chile » Antofagasta Antofagasta is a port city in northern Chile, located approximately 1,100 km north of Santiago. It is the capital of Antofagasta Province and the Antofagasta Region. Known as the "Pearl of Northern Chile," Antofagasta is famous for its beaches and the natural monument of La Portada. The city's population was 401,096 in 2024. |

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Netherlands » Maastricht The North Caves Maastricht Underground lie deep within the St Pietersberg hills and hold a unique piece of Maastricht's history. They are a collection of limestone quarries in Maastricht, Netherlands, dating back to the 13th century. Originally, the North Caves were excavated for chalk. In total, a network of 20,000 tunnels was carved into the rock, of which 8,000 remain intact. |

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Netherlands » Maastricht Maastricht is a city and municipality in southeastern the Netherlands. It is the capital and largest city of the province of Limburg. Maastricht is renowned for its rich history, stunning architecture, and vibrant culture. It is a city where the past and present blend seamlessly, from centuries-old churches to bustling squares. The city's population was 120,227 in 2014. |

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Paraguay » Villarrica Villarrica is a city in Paraguay. Located in the heart of Eastern Paraguay, it is the capital and most populous city of the province of GuairĂ¡. Villarrica is one of Paraguay's oldest and most traditional cities, situated at an altitude of 200 m (660 ft) and with a population of 74,355. |

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Solano County » SLN Ryer Island is a 4,750-hectare (11,700-acre) island in Solano County, in the Sacramento-San Joaquin River Delta, surrounded by Miner Slough and Steamboat Slough at the confluence with the Sacramento River, 6.5 miles north-northeast of Rio Vista. |

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North Korea » Chagang Chagang is a province of North Korea; it borders the Chinese provinces of Jilin and Liaoning to the north. It is a mountainous province, with mountainous terrain accounting for 98% of its total area. The province's population was 1,299,830 in 2008. The provincial capital is Kanggye. |