Athens , the capital and largest city of Greece, dominates the Attica periphery; as one of the world's oldest cities, its recorded history spans around 3,400 years.

The Greek capital has a population of 745,514 (in 2001) within its administrative limits and a land area of 39 km2 (15 sq mi). The urban area of Athens extends beyond the administrative city limits with a population of 3,130,841 (in 2001) and a land area of 412 km2 (159 sq mi). According to Eurostat, the Athens Larger Urban Zone (LUZ) is the 7th most populous LUZ in the European Union (the 5th most populous capital city of the EU) with a population of 4,013,368 (in 2004). A bustling and cosmopolitan metropolis, Athens is central to economic, financial, industrial, political and cultural life in Greece and it is rated as an alpha- world city. It is rapidly becoming a leading business centre in the European Union. In 2008, Athens was ranked the world's 32nd richest city by purchasing power and the 25th most expensive in a UBS study.

Classical Athens was a powerful city-state. A centre for the arts, learning and philosophy, home of Plato's Academy and Aristotle's Lyceum, Athens was also the birthplace of Socrates, Pericles, Sophocles and its many other prominent philosophers, writers and politicians of the ancient world. It is widely referred to as the cradle of Western civilization and the birthplace of democracy, largely due to the impact of its cultural and political achievements during the 5th and 4th centuries BC on the rest of the then known European continent.

The heritage of the classical era is still evident in the city, represented by a number of ancient monuments and works of art, the most famous of all being the Parthenon on the Acropolis, widely considered a key landmark of early Western civilization. The city also retains a vast variety of Roman and Byzantine monuments, as well as a smaller number of remaining Ottoman monuments projecting the city's long history across the centuries. Landmarks of the modern era are also present, dating back to 1830 (the establishment of the independent Greek state), and taking in the Hellenic Parliament (19th century) and the Athens Trilogy consisting of the National Library of Greece, the Athens University and the Academy of Athens. Athens was the host city of the first modern-day Olympic Games in 1896, and 108 years later it welcomed home the 2004 Summer Olympics.

Geography
Athens sprawls across the central plain of Attica that is often referred to as the Attica Basin. The basin is bound by four large mountains; Mount Aegaleo to the west, Mount Parnitha to the north, Mount Penteli to the northeast and Mount Hymettus to the east of the Athens Metropolitan Area. The Saronic Gulf lies in the southwest. Mount Parnitha is the tallest of the four mountains (1,413 m (4,636 ft)) and it has been declared a national park.

Athens is built around a number of hills. Lycabettus is one of the tallest hills of the city proper and allows the entire Attica Basin to be seen. The geomorphology of Athens causes the so-called temperature inversion phenomenon which, along with the failure of the Greek Government to control industrial pollution, is responsible for the air pollution problems the city has recently faced.(Los Angeles and Mexico City also suffer with similar geomorphology inversion problems).

Architecture
The city of Athens contains a variety of different architectural styles, ranging from Greco-Roman, Neo-Classical, to modern. Many of the most prominent buildings of the city are either Greco-Roman or neo-classical in style. Some of the neo-classical buildings to be found are public buildings erected during the mid-nineteenth century under the guidance of Theophil Freiherr von Hansen: Athens Academy - Athens City Hall - Greek Parliament - Old Parliament (1875–1932) (Now the National Historical Museum) - University of Athens - Zappeion Hall
 
Neighbourhoods
The Municipality of Athens is divided into several districts: Omonoia, Syntagma, Exarcheia, Aghios Nikolaos, Neapolis, Lykavittos, Lofos Strefi, Lofos Finopoulou, Lofos Filopappou, Pedion Areos, Metaxourgeio, Aghios Kostantinos, Larissa Station, Kerameikos, Psiri, Monastiraki, Gazi, Thission, Kapnikarea, Aghia Irini, Aerides, Anafiotika, Plaka, Acropolis, Pnyka, Makrygianni, Lofos Ardittou, Zappeion, Aghios Spyridon, Pangration, Kolonaki, Dexameni, Evaggelismos, Gouva, Aghios Ioannis, Neos Kosmos, Koukaki, Kynosargous, Fix, Ano Petralona, Kato Petralona, Rouf, Votanikos, Profitis Daniil, Akadimia Platonos, Kolonos, Kolokynthou, Attikis Square, Lofos Skouze, Sepolia, Kypseli, Aghios Meletios, Nea Kypseli, Gyzi, Polygono, Ampelokipoi, Panormou-Gerokomeio, Pentagono, Ellinorosson, Kato Filothei, Ano Kypseli, Tourkovounia-Lofos Patatsou, Lofos Elikonos, Koliatsou, Thymarakia, Kato Patisia, Treis Gefyres, Aghios Eleftherios, Ano Patisia, Kypriadou, Prompona.

Omonoia
Night view of Omonoia Square in the heart of Athens
Omonoia Square (Greek: Πλατεία Ομονοίας) is the oldest square in Athens. It is surrounded by hotels and fast food outlets, and contains a train station used by the Athens Metro and the Ilektrikos, appropriately named Omonoia Station. The square often becomes the focus for celebration of sporting victories, as seen after the country's winning of the Euro 2004 and the Eurobasket 2005 tournaments. Psiri and Gazi - The reviving Psiri (Greek: Ψυρρή) neighbourhood – aka Athens's "meat packing district" – is dotted with renovated former mansions, artists' spaces, and small gallery areas. A number of its renovated buildings also now host a wide variety of fashionable bars, making it a hotspot for the city in the last decade, while a number of live music restaurants known as "rebetadika", after Rebetiko, a unique form of music that blossomed in Syros and Athens from the 1920s until the 1960s, are also to be found. Rebetiko is admired by many, and as a result rebetadika are often crammed with people of all ages who will sing, dance and drink till dawn. The Gazi (Greek: Γκάζι) area, one of the latest in full redevelopment, is located around a historic gas factory, now converted into the Technopolis cultural multiplex, and also includes artists' areas, a number of small clubs, bars and restaurants, as well as Athens' nascent "Gay Village".[citation needed] The metro's system recent expansion to the western suburbs of the city has brought easier access to the area since spring 2007, as the blue line now stops at Gazi (Kerameikos station). Syntagma - Syntagma Square, (Greek: Σύνταγμα/Constitution Square), is the capital's central and largest square, lying adjacent to the Greek Parliament (the former Royal Palace) and the city's most noted hotels. Ermou Street, an approximately 1 km-long pedestrian road connecting Syntagma Square to Monastiraki, has traditionally been a consumer paradise for both Athenians and tourists. Complete with fashion shops and shopping centres promoting most international brands, it now finds itself in the top 5 most expensive shopping streets in Europe, and the tenth most expensive retail street in the world. Nearby, the renovated Army Fund building in Panepistimiou Street includes the "Attica" department store and several upmarket designer stores. Plaka, Monastiraki, and Thission - Plaka (Greek: Πλάκα), lying just beneath the Acropolis, is famous for its plentiful neoclassical architecture, making up one of the most scenic districts of the city. It remains a traditionally prime tourist destination with a number of picturesque tavernas, live performances and street salesmen. Nearby Monastiraki (Greek: Μοναστηράκι), for its part, is well-known for its string of small shops and markets, as well as its crowded flea market and tavernas specialising in souvlaki. Another district notably famous for its student-crammed, stylish cafés is Theseum or Thission (Greek: Θησείο), lying just west of Monastiraki. Thission is home to the ancient Temple of Hephaestus, standing atop a small hill. This area also has a pictursque 11th Century Byzantine church, as well as a 15th Century Ottoman mosque. Kolonaki - The Kolonaki (Greek: Κολωνάκι) area, at the base of Lycabettus hill, is full of boutiques catering to well-heeled customers by day, and bars and more fashionable restaurants by night, but at other points also a wide range of art galleries and museums. This is often regarded as one of the more prestigious areas of the capital.  Exarcheia - Exarcheia (Greek: Εξάρχεια), located north of Kolonaki, has a mixed reputation as the recent or current location of the city's anarchist scene and as a culturally active student quarter with many cafés, bars and bookshops. Exarcheia is home to the Athens Polytechnic and the National Archaeological Museum; it also contains numerous important buildings of several 20th-century styles: Neoclassicism, Art Deco and Early Modernism (including Bauhaus influences).

Suburbs
The Athens Metropolitan Area consists of 73 densely populated municipalities, sprawling around the city in virtually all directions. According to their geographic location in relation to the city of Athens, the suburbs are divided into four zones; the northern suburbs (including Ekali, Nea Erythrea, Agios Stefanos, Drosia, Dionysos, Kryoneri, Kifissia, Maroussi, Pefki, Lykovrisi, Heraklio, Glyka Nera, Vrilissia, Melissia, Pendeli, Halandri, Psychiko and Filothei); the southern suburbs, (including Palaio Faliro, Elliniko, Glyfada, Alimos, Voula and the southernmost suburb of Vouliagmeni); the eastern suburbs, (including Acharnes, Zografou, Vyronas, Kaisariani, Cholargos, Papagou and Aghia Paraskevi; and the western suburbs (including Peristeri, Ilion, Egaleo, Petroupoli and Nikaia). The Athens city coastline, extending from the major commercial port of Piraeus to the southernmost suburb of Varkiza for some 25 km (20 mi), is also connected to the city centre by a tram. In the northern suburb of Maroussi, the upgraded main Olympic Complex (known by its Greek acronym OAKA) dominates the skyline. The whole area has been redeveloped according to a design by the Spanish architect Santiago Calatrava, with steel arches, landscaped gardens, fountains, futuristic glass, and a landmark new blue glass roof which was added to the main stadium. A second Olympic complex, next to the sea at the beach of Kallithea (Faliron), also features modern stadia, shops and an elevated esplanade. Work is underway to transform the grounds of the old Athens Airport – named Hellinikon – in the southern suburbs, into one of the largest landscaped parks in Europe, to be named the Hellenikon Metropolitan Park. Many of the southern suburbs (such as Alimos, Palaio Faliro, Elliniko, Voula, Vouliagmeni and Varkiza) host a number of sandy beaches, most of which are operated by the Greek National Tourism Organisation and require an entrance fee, which is not excessive in most cases. Casinos operate on both Mount Parnitha, some 25 km (16 mi) from downtown Athens, (accessible by car or cable car) and the nearby town of Loutraki (accessible by car via the Athens – Corinth National Highway, or the suburban railroad).