1. Knossos Palace

Arguably the most famous archaeological site in Crete, the Palace of Knossos is an ancient Minoan palace complex located just a few kilometers south of Heraklion. Dating back to around 1900 BC, Knossos is linked to fascinating myths, including the legend of the Minotaur in the labyrinth. Visitors can explore the ruins, which include the grand throne room, intricate frescoes, and the famous Bull-Leaping fresco.

2. Heraklion Archaeological Museum

One of the most important museums in Greece, the Heraklion Archaeological Museum houses an extensive collection of artifacts from the Minoan civilization. The museum's exhibits include the renowned Phaistos Disc, a vast array of pottery, sculptures, and jewelry, providing a comprehensive insight into the island's ancient history.

3. Koules Fortress

Located at the entrance of the old harbor, the Koules Fortress (also known as Castello a Mare) is a striking Venetian structure built in the 16th century to protect the city from pirate and Ottoman attacks. Today, visitors can wander through the fortress, enjoying panoramic views of the harbor and city, as well as exploring the various rooms and exhibits within.

4. Venetian Walls

The Venetian Walls encircling Heraklion are among the best-preserved fortifications in the Mediterranean. Constructed in the 16th century, these massive walls were designed to defend the city against invaders. Walking along the walls offers a unique perspective on the city's layout and a chance to see landmarks such as the Martinengo Bastion, where the tomb of the famous Greek writer Nikos Kazantzakis is located.