The Corinth Canal, stretching 6,343 meters (about 4 miles) and 24.6 meters (80 feet) wide, was completed in 1893 after nearly a decade of construction that began in 1882. Designed to connect the Aegean Sea with the Gulf of Corinth, the canal was intended to serve as a major maritime shortcut. However, its narrow dimensions and unstable geology have limited its practical use. The idea of a canal through the Isthmus of Corinth—where the Greek mainland meets the Peloponnese—dates back to ancient times. As early as the 7th century BCE, the Corinthian ruler Periander considered the project but instead built the Diolkos, a stone road used to transport ships on wheeled carts. Later, in 67 CE, Emperor Nero of Rome tried to build a canal using 6,000 Jewish prisoners, but the project was abandoned after his death. Modern construction of the canal began in 1882, led by Hungarian engineer István Türr and funded by French investors. However, financial troubles led to the project’s collapse in 1889. Greek businessman Andreas Syngrós took over, and the canal was finally completed in 1893, with King George I of Greece attending its inauguration. The canal’s completion effectively divided the Peloponnese from the mainland, turning it into an island. The first ship to pass through was the Notre-Dame-du-Salut, a French vessel, a few months after the opening. Despite initial hopes for its economic importance, the canal’s narrow dimensions—only 21.4 meters wide at the base—limit it to small vessels. Modern ships, which are much larger, cannot pass through safely. The canal has faced ongoing challenges due to unstable geology. Landslides have frequently disrupted operations, with a major collapse in 1923 requiring two years to clear. In early 2021, another landslide forced a temporary closure, and the canal was not reopened until June 2023 after additional safety measures were implemented. Today, the canal is primarily used by tourist ships, with around 11,000 to 15,000 vessels passing through each year. In 2019, the MS Braemar, a large cruise ship, became the largest vessel to transit the canal, though the operation was carefully managed to avoid risks. Despite its limited utility for commercial shipping, the Corinth Canal remains a popular tourist attraction, drawing visitors with its dramatic scenery and historical significance. Proposals to widen the canal have been discussed, but the high costs and risks of working with unstable limestone have led to their rejection. The canal still stands as a narrow shortcut for small vessels and a testament to the ambitious vision of those who dreamed of it over two thousand years ago.