Bourtzi is in Karystos in Euboea(Evia).

The term "bourtzi" was used to describe fortresses which were in coast or peninsula and sometimes also in islets, with most famous the Bourtzi in Nafplio.

Bourtzi in Karystos is located on the promenade of the city. It was built by the Venetians in the 14th century to protect Karystos from attacks and raids. This two-storey fortress survives almost intact with its embrasures and the holes through which the defenders pored boiling oil poured on invaders. In several points of the fortress one can distinguish pieces of ancient buildings (mainly Roman) that were used for its construction.

Bourtzi is one of the most beautiful sights in Karystos and in summer it hosts art exhibitions and other cultural events.

Karababa Castle is situated in Chalkida, Euboea(Evia).

It is built in a very strategic position, so it can control both the city of Chalkida and Evripos strait. . Probably the hill upon which it is built was fortified during the Roman era, while some identify the specific location with the Ancient Kanithos.

The Karababa Castle was constructed by the Turks in 1684 and having withstood the siege of the Venetian Morosini in 1688, it returned to the Greeks after the success of the revolution of 1821. The castle had three bastions and a large tower, while in its precinct a temple is preserved dating to the end of 19th century, dedicated to the Prophet Elijah. At the entrance of the castle you will see the tomb of the poet Giannis Skarimbas.

During your holidays in Chalkida, it is worth spending some time in the Karababa Castle, enjoying the fortifications, the 19th century cannons and of course the magnificent views of the area.

The Chalkida Bridge is in the city of Chalkida, in Euboea(Evia).

A bridge has always been standing there since ancient times,connecting Central Greece and Euboea. Once wooden and later metal, the bridge contributed to the communication of Evia with the rest of Greece and the economic development of the region.

Today on the spot you will see two bridges, the so-called Old Bridge and the high Bridge of Chalkida.

The Old Bridge is metallic and electric, so that it can open and allow the passage of ships. On the side there are pavements, from which people usually watch the phenomenon of the Evripos tide. The Old Bridge faced serious traffic congestion, which was significantly reduced by the construction of the new bridge, known as High Bridge of Chalkida.

Completed in 1993, the High Bridge of Chalkida helped greatly in traffic decongestion and the further development of Evia. The bridge is cabled with a total length of 695 meters, width 12,5 meters and height of 34,5 meters. Brace yourselves for once you find yourself here, you can also do bungee jumping off the High Bridge Chalkida.

Both bridges are major attractions and the unique ways in which you can get by car to Evia.

You can observed the famous Evripos tide in the Evripos strait in Evia.

The Evripos tide is a unique phenomenon that occurs in the strait of Evripos. At this point, water runs constantly changing direction of movement about every six hours, sometimes to the South and sometimes to the North with Evian Gulf as an intermediate small space where they remain stationary. This constant motion gave the sea and the area the nickname "crazy waters".

This phenomenon has been observed since ancient times, puzzling some of the leading thinkers of the era, such as Eratosthenes and Aristotle. Actually, it is said that he dived into the waters trying to solve the mystery of their motion.

Today the accepted explanation for this very special phenomenon is that the Aegean tidal wave enters the northern and southern Gulf of Evia with time difference, thus creating this spectacular movement.

Whatever the explanation, this is a very special and beautiful phenomenon worth seeing first hand when you find yourself in Chalkida.