The Olympic Aquatic Centre, located in Athens, was a key venue during the 2004 Summer Olympics. Situated in the Athens Olympic Sports Complex in Marousi, a suburb of Athens, the Aquatic Centre hosted swimming, diving, synchronized swimming, and water polo events. The centerpiece of the complex was the main swimming pool, which had a capacity of 17,500 spectators. Its distinctive design featured a roof resembling the shell of a turtle, symbolizing the ties between ancient and modern Greece.
The area surrounding the Aquatic Centre underwent significant development in preparation for the Olympics. Marousi, already a bustling commercial and residential hub, saw infrastructure improvements, including the expansion of transportation networks and the construction of new facilities to accommodate athletes and spectators. The Games provided a catalyst for urban renewal, leaving a legacy of modernized infrastructure and enhanced amenities for residents and visitors alike. Today, the Olympic Aquatic Centre stands as a testament to Athens' hosting of the Games and continues to serve as a venue for national and international sporting events, contributing to the city's rich sporting legacy.

Pylos Castle, also known as Niokastro (New Navarino), is a prominent historical fortress located in Pylos, on the southwestern coast of the Peloponnese, Greece. Constructed by the Ottoman Turks in 1573 after their victory at the Battle of Lepanto, the fortress was intended to solidify their control over the strategic western coast of the Peloponnese. Niokastro is a striking example of Ottoman military architecture, characterized by its massive walls, bastions, and a central keep.
Over the centuries, the castle changed hands multiple times, reflecting the turbulent history of the region. It was captured by the Venetians in the 1680s and later by the French during the Napoleonic Wars. Each ruling power left its mark on the structure, contributing to its diverse architectural features. Within its walls, the castle contains various buildings, including a church that was converted into a mosque, barracks, and cisterns.
Today, Niokastro houses the Pylos Archaeological Museum, which showcases artifacts from the region's rich history, including items from the Mycenaean period. The castle is also a popular tourist destination, offering stunning panoramic views of the Bay of Navarino and the surrounding landscape. Pylos Castle is historically significant, having played a crucial role in regional defense and witnessing major events, such as the Battle of Navarino in 1827, a decisive naval battle during the Greek War of Independence.