The National Theatre of Greece, also known as the Ethniki Skini, is the national theatre of Greece and one of the oldest and most prestigious theatres in the country. It is located in the center of Athens and has been in operation since 1901. The National Theatre of Greece was established with the aim of promoting and preserving Greek culture and language through theatrical performances. Over the years, it has played a significant role in the development of Greek theatre and has produced many notable productions. The theatre's building was designed by Greek architect Ernst Ziller in a neoclassical style, and it features a grand façade and a large auditorium that can seat up to 1,700 people. The theatre also has several smaller performance spaces and rehearsal rooms. In addition to producing theatrical productions, the National Theatre of Greece also offers training programs for actors, directors, and other theatre professionals. It has collaborated with many international theatre companies and has participated in numerous theatre festivals around the world. Overall, the National Theatre of Greece is an important institution in Greek culture and has played a significant role in the development of Greek theatre. It continues to be a popular destination for locals and tourists alike, offering a diverse range of productions throughout the year.

The Academy of Athens is one of the most prominent institutions of higher education and research in Greece. It is located in Athens, the capital city of Greece, and was founded in 1926 with the aim of promoting scientific and academic excellence in the country. The Academy of Athens is modeled after the famous Academy of Plato and is housed in a neoclassical building that was designed by the Danish architect Theophil Hansen. The building is located in the center of Athens, near Syntagma Square, and is considered one of the most important architectural landmarks in the city. The Academy is comprised of several research centers, each dedicated to a specific field of study, including humanities, social sciences, physical sciences, and life sciences. The Academy's mission is to promote research, education, and public service in these fields, and to advance the knowledge and understanding of Greece's cultural heritage and scientific contributions to the world. The Academy also plays an important role in shaping public policy and decision-making in Greece, and its members are often called upon to provide expert advice and counsel to government officials and other stakeholders. The Academy of Athens is widely recognized as a leading institution of higher learning and research in Greece, and its members have made significant contributions to a wide range of fields, including philosophy, literature, history, mathematics, physics, biology, and medicine.

The National Archaeological Museum of Athens is the largest archaeological museum in Greece and one of the most important museums in the world. It was founded in 1829 and has been housed in its current neoclassical building since 1889. The museum houses a vast collection of ancient Greek art and artifacts that span over 5,000 years of Greek history, from the prehistoric period to the Roman era. The collection includes sculptures, pottery, jewelry, metalwork, and other objects that provide insight into the daily life, religious practices, and artistic achievements of ancient Greece. One of the most impressive exhibits in the museum is the Mycenaean collection, which includes artifacts from the ancient city of Mycenae, including the famous golden mask of Agamemnon. The museum also has a large collection of sculptures from the classical period, including the bronze statue of Zeus or Poseidon, and the Artemision Bronze. The National Archaeological Museum of Athens has undergone several renovations and expansions over the years to accommodate its growing collection and improve the visitor experience. Today, the museum attracts thousands of visitors each year who come to marvel at the ancient treasures that are on display and learn about the rich cultural heritage of Greece.

The Temple of Olympian Zeus is an ancient temple located in the center of Athens, Greece. It is dedicated to Zeus, the king of the gods in Greek mythology, and it is one of the largest and most impressive temples of the ancient world. The construction of the Temple of Olympian Zeus began in the 6th century BC, during the reign of the Athenian tyrant Peisistratus. However, the temple was not completed until the reign of the Roman emperor Hadrian in the 2nd century AD, more than 600 years later. The temple had 104 columns, each standing 17 meters tall, making it one of the largest temples in the ancient world. Today, only 15 of the original columns remain standing, along with some other architectural elements of the temple, including the ruins of the sanctuary, the cella, and the east and west pediments. The temple is an impressive sight, even in its partially ruined state, and it is a popular tourist attraction in Athens. The Temple of Olympian Zeus is located in a large park area known as the "Archaeological Site of Olympieion." The park is a peaceful and picturesque oasis in the heart of the city, with lush greenery and beautiful views of the temple and the surrounding landscape. Visitors can stroll through the park, take photos of the temple, and learn about its fascinating history through the on-site informational displays.

The Stoa of Attalos is an ancient building located in the Agora of Athens, Greece. It was originally built by King Attalos II of Pergamon in the 2nd century BC as a gift to the city of Athens, and was used as a covered marketplace and meeting place. The Stoa of Attalos was a two-story building with a colonnade of 21 Doric columns on the ground floor and 21 Ionic columns on the upper floor. The building was about 115 meters long and 20 meters wide, and it had a central hall and several smaller rooms. During the Roman period, the Stoa of Attalos was damaged by fire and earthquakes, and it fell into disrepair. In the 1950s, the building was reconstructed by the American School of Classical Studies at Athens, using ancient building materials and techniques. Today, the Stoa of Attalos houses the Museum of the Ancient Agora, which contains exhibits on the history of the Agora and ancient Athens. The museum's collection includes pottery, coins, sculpture, and other artifacts from the ancient Greek and Roman periods.