The Acropolis Museum is an archaeological museum focused on the findings of the archaeological site of the Acropolis of Athens. The museum was built to house every artifact found on the rock and on the surrounding slopes, from the Greek Bronze Age to Roman and Byzantine Greece. The Acropolis Museum also lies over the ruins of part of Roman and early Byzantine Athens. The museum was founded in 2003 while the Organization of the Museum was established in 2008. It opened to the public on 20 June 2009. More than 4,250 objects are exhibited over an area of 14,000 square meters.

The Pnyx is a hill in central Athens, the capital of Greece. Beginning as early as 507 BC (Fifth-century Athens), the Athenians gathered on the Pnyx to host their popular assemblies, thus making the hill one of the earliest and most important sites in the creation of democracy. The Pnyx is located less than 1 kilometre (0.62 mi) west of the Acropolis and 1.6 kilometres (0.99 mi) south-west of the Syntagma Square in the centre of Athens.

The Arch of Hadrian, most commonly known in Greek as Hadrian's Gate, is a monumental gateway resembling—in some respects—a Roman triumphal arch. It spanned an ancient road from the center of Athens, Greece, to the complex of structures on the eastern side of the city that included the Temple of Olympian Zeus. It has been proposed that the arch was built to celebrate the adventus (arrival) of the Roman emperor Hadrian and to honor him for his many benefactions to the city, on the occasion of the dedication of the nearby temple complex in 131 or 132 AD. Since Hadrian had become an Athenian citizen nearly two decades before the monument was built, Kouremenos has argued that the inscriptions on the arch honor him as an Athenian rather than as the Roman emperor.

The Temple of Olympian Zeus, also known as the Olympieion or Columns of the Olympian Zeus, is a former colossal temple at the center of the Greek capital Athens. It was dedicated to "Olympian" Zeus, a name originating from his position as head of the Olympian gods. Construction began in the 6th century BC during the rule of the Athenian tyrants, who envisaged building the greatest temple in the ancient world, but it was not completed until the reign of the Roman Emperor Hadrian in the 2nd century AD, some 638 years after the project had begun. During the Roman period the temple, which included 104 colossal columns, was renowned as the largest temple in Greece and housed one of the largest cult statues in the ancient world.

The Panathenaic Stadium or Kallimarmaro, lit. "beautiful marble")is a multi-purpose stadium in Athens, Greece. One of the main historic attractions of Athens, it is the only stadium in the world built entirely of marble. A stadium was built on the site of a simple racecourse by the Athenian statesman Lykourgos (Lycurgus) c. 330 BC, primarily for the Panathenaic Games. It was rebuilt in marble by Herodes Atticus, an Athenian Roman senator, by 144 AD it had a capacity of 50,000 seats. After the rise of Christianity in the 4th century it was largely abandoned. The stadium was excavated in 1869 and hosted the Zappas Olympics in 1870 and 1875. After being refurbished, it hosted the opening and closing ceremonies of the first modern Olympics in 1896 and was the venue for 4 of the 9 contested sports. It was used for various purposes in the 20th century and was once again used as an Olympic venue in 2004. It is the finishing point for the annual Athens Classic Marathon.

The Hellenic Parliament formally titled Voulí ton Ellínon, also known as the Parliament of the Hellenes, or Greek Parliament, is the unicameral legislature of Greece, located in the Old Royal Palace, overlooking Syntagma Square in Athens. The parliament is the supreme democratic institution that represents the citizens through an elected body of Members of Parliament.

The Evzones or Evzonoi were several historical elite light infantry and mountain units of the Greek Army. Today, they are the members of the Presidential Guard, a ceremonial unit that guards the Greek Tomb of the Unknown Soldier and the Presidential Mansion in Athens. An Evzone is also known, colloquially, as a Tsoliás. Evzones are known for their distinctive uniform, which evolved from the clothes worn by the klephts who fought the Ottoman occupation of Greece. The most visible item of this uniform is the fustanella, a kilt-like garment. Their distinctive dress turned them into a popular image for the Greek soldier, especially among foreigners.

The Academy of Athens is Greece's national academy, and the highest research establishment in the country. It was established in 1926, with its founding principle traces back to the historical Academy of Plato, and operates under the supervision of the Ministry of Education. is Greece's national academy, and the highest research establishment in the country. It was established in 1926, with its founding principle traces back to the historical Academy of Plato, and operates under the supervision of the Ministry of Education.

The National and Kapodistrian University of Athens (EKPA), commonly referred to as the University of Athens, is a higher education institution operating in Athens. It was established by Regency Law on December 31, 1836 (old calendar) by royal decree of Otto on April 14, 1837, and has been in continuous operation since May 3, 1837 (the third day of Easter). It is the largest University of Greece, after the Aristotle University of Thessaloniki, with more than 40,000 undergraduate students and more than 2,000 teaching and research staff.

The National Library of Greece, is the main public library of Greece, located in Athens. Founded by Ioannis Kapodistrias in 1832, its mission is to locate, collect, organize, describe and preserve the perpetual evidence of Greek culture and its uptake over time, as well as important representative evidence of human intellectual production.

Omonoia Square, "Concord Square", often simply referred to as Omónoia is a central square in Athens. Forming the centre of Omonoia. It marks the northern corner of the downtown area defined by the city plans of the 19th century, and is one of the city's principal traffic hubs. It is served by Omonoia metro station. Omonoia Square is one of the oldest squares in the city of Athens and an important shopping centre. It is located at the center of the city at the intersection of six main streets: Panepistimiou, Stadiou, Athinas, Peiraios, Agiou Konstantinou Street and 3rd Septemvriou Street.

The name Klathmonos Square (meaning "crying square") was taken after a vignette in the magazine Hestia , because there, in front of the Ministry of Finance (which has been demolished), the dismissed civil servants gathered after each election to protest for their dismissal, since then there was no permanency of civil servants and each new government fired the officials hired by the previous government and hired its own voters.

The Old Parliament House at Stadiou Street in Athens, housed the Greek Parliament between 1875 and 1935. It now houses the country's National Historical Museum. The site was occupied originally by the house of the Athenian magnate and politician, Alexandros Kontostavlos. After Athens became the capital of Greece in 1833, King Otto selected it as temporary residence, pending the construction of the Royal Palace (which houses Parliament currently). In 1835, a large dance and banquet hall was added to the house, and after the 1843 Revolution, which forced King Otto to grant a constitution, the National Assembly convened here. In October 1854, however, the house burned down in a fire. Construction of a new building then began in August 1858, with the foundation laid by Queen Amalia, on plans by French architect Francois Boulanger.