of the two central squares of modern Athens, situated to what were then the eastern boundaries of the city. The second square was Omonoia Square, to the north of the city. Even though King Otto's Royal Palace was at first planned to be erected on Omonia Square, a location overlooking the eastern square was deemed a better option. Thus, the square's first name was "Palace Square". Work for the construction of the Old Palace to the north of the square, started in 1836 and lasted until 1843. In late July 1843, a popular and military uprising took place in the Greek Capital on September 3, 1843. Soldiers under Dimitrios Kallergis gathered in front of the palace and demanded the granting of constitution. King Otto was then obliged to grant the first Constitution of Greece. In memory of the event, the palace square was renamed to Constitution Square or Syntagma Square in Greek. Between 2010 and 2012, the square was the site of mass protests by crowds of many thousands of people, due to the worsening economic situation during the Greek government debt crisis. Transport Syntagma Square is a hub for many forms of public transportation in Athens and is one of the busiest transport hubs in Greece. Metro lines 2 and 3 of the Athens Metro have a stop at the Syntagma station, which is to be found under the square; the Athens Tram also has its northern terminal next to the square. Buses and trolleybuses start, terminate and connect the square to many places in the metropolitan area. Travel between Syntagma Square and the Eleftherios Venizelos Airport is available via the special airport bus line X95 and metro line 3. Free high-speed wireless Internet access (4 Mbit/s) is offered by the Municipality of Athens at the square. The square is also a hub for buses to the northern suburbs and the Athens Olympic Complex in Maroussi. Attractions near the square The square is located near many of Athens' oldest and most famous neighbourhoods and tourist attractions, all within walking distance: Plaka (Πλάκα), Monastiraki (Μοναστηράκι), Psiri (Ψυρρή) Kolonaki (Κολωνάκι) Acropolis (Ακρόπολις), Theater of Dionysus, Areopagus, the Ancient Agora of Athens (Αρχαία Αγορά των Αθηνών) Hadrian's Library, Tower of the Winds in the Roman Agora, Choragic Monument of Lysicrates, Arch of Hadrian (Αψίς του Ανδριανού), Temple of Olympian Zeus (Ναός του Ολυμπίου Διός), Pnyx (Πνύκα), Philopappos Monument (Μνημείο του Φιλοπάππου) on