Sailing at the 2004 Summer Olympics

The Agios Kosmas Olympic Sailing Centre hosted the sailing events at the 2004 Summer Olympics in Athens, Greece. The center is located about four miles from downtown Athens along the coast. It was officially opened on August 2, 2004, a few weeks before the Olympics, though test events were conducted at the site in August 2002 and 2003. The center had a capacity of 1,600 for the medal ceremonies. After the Olympics, the site was turned over to the private sector (Seirios AE), and will become a marina with a 1,000+ yacht capacity, as part of Athens' revitalized waterfront.

Riviera Tower, also known as Marina Tower or Hellinikon Marina Residential Tower, is a residential skyscraper currently under construction in Athens, Greece. Located at the coastal district of Elliniko, its planned height of 198 m (650 ft) is going to render it the tallest building in Greece. The tower designed by Foster + Partners when completed in 2026 will host 200 apartments on 50 floors. The tower will feature green building characteristics and its developers aim for LEED Gold certification.

Elliniko (Greek: Ελληνικό, meaning 'Hellenic' or 'Greek') is a coastal municipality in the Attica region and a southern suburban town in the Athens agglomeration, Greece. Since the 2011 local government reform, it is part of the municipality Elliniko-Argyroupoli, of which it is a municipal unit. Elliniko is known for the former Hellinikon Olympic Complex, a temporary sporting complex building on the grounds of the former Ellinikon International Airport used for the 2004 Summer Olympics and the 2004 Summer Paralympics. Elliniko is the site of a major development project for coastal Athens beginning in 2020 and due for completion in 2026 - the Hellenikon Metropolitan Park consisting of luxury homes, hotels, a casino, a marina, shops, offices and Greece's tallest buildings such as the Riviera Tower and Hard Rock Hotel & Casino.

The Hellenic National Meteorological Service (HNMS) (Greek: Εθνική Μετεωρολογική Υπηρεσία (ΕΜΥ)) is a government agency responsible for making weather forecasts and observations for Greece. HNMS was founded in 1931 under the Ministry of Aviation and its mission was to cover all the meteorological and climatological needs of the country. It is based at the former Athens International Airport at Elliniko, and operates under the auspices of the Hellenic Air Force, staffed by both military and civilian personnel.

On 7 October 1979, a Swissair DC-8 crashed while attempting to land at Athens-Ellinikon International Airport in Athens, Greece. Of the 154 passengers and crew on board, 14 were killed in the accident.

Athens Riviera is the coastal area in the southern suburbs of Athens, Greece from Piraeus to Sounio and Lavrio. It is located about 16 km (9.9 mi) from downtown Athens stretching from the southern suburbs of Athens to the southernmost points of Attica.

The Hellenikon Metropolitan Park (also called "the Ellinikon") is an urban development under construction in Hellinikon, Athens, Greece, on the site of the former Hellenikon International Airport.It is to include a park as well as luxury homes, hotels, a casino, a marina, shops, and offices and will have Greece's tallest buildings reaching up to 200 meters in height. Construction had been scheduled to begin in 2008 and be completed by 2013, but the plans were shelved in the midst of the financial crisis. In July 2020, work began on the park and is due to be completed in 2024, while the Riviera Tower and Hard Rock Hotel Casino are due to be completed by 2026.

The Hellinikon Olympic Indoor Arena was a multi-use sports indoor arena that was located in Elliniko, a suburban town in the southern part of the Athens urban agglomeration, Greece. It was a part of the Hellinikon Olympic Complex, and it was located adjacent to the Helliniko Fencing Hall. It was approximately 10 miles from the Athens Olympic Village. It was built on the site of the former Hellinikon International Airport for the 2004 Summer Olympics and the 2004 Summer Paralympics. The arena had in use its full seating capacity of 15,000 spectators for basketball, and 13,500 for handball during the 2004 Summer Olympic Games. However, only 12,500 seats were made available to the public for the basketball tournament, and only 10,700 for the handball tournament. After the Olympics, only the lower tier 8,500 seats have been made available by the arena's owners for public use. However, the arena can still hold 15,000 for basketball with the upper tier in full use. The arena was also known as the National Athletic Center Elliniko "Makis Liougas". It was demolished in 2022.

The Hellinikon Olympic Softball Stadium is a softball stadium located in the Hellinikon Olympic Complex in Athens. It hosted the softball competitions during the 2004 Summer Olympics in Athens. The venue consists of a main softball field of 4,800 seats - though only 3,400 seats were made publicly available during the games - and 2 warm-up fields nearby. Construction on the facility was completed on 29 February 2004, and it was officially opened on 30 July 2004. Softball however, has not been played at the stadium since the end of the 2004 Olympic Games. One minder of the stadium commented that, "The softball [stadium] is in perfect working order. It is not abandoned. It's just that nobody ever plays softball". The stadium has since fallen into disuse and disrepair.

The Hellinikon Fencing Hall was a multi-purpose indoor sporting arena that was located adjacent to the Hellinikon Olympic Arena, in Hellinikon, Athens, Greece. The venue was part of the Hellinikon Events Hall of the Hellinikon Olympic Complex. It was demolished in 2022.

Hellinikon Stadium is a stadium located at the Hellinikon Olympic Complex in Hellinikon, Athens, located approximately 8 kilometres south of the center of Athens, near Glyfada on the Aegean Sea coast. Ethnikos Piraeus F.C. currently plays its home matches there. The complex was built on the site of the former Hellinikon International Airport for the staging of the 2004 Summer Olympics and 2004 Summer Paralympics and consisted of the following venues: Hellinikon Indoor Arena (Basketball and Team handball); Hellinikon Fencing Hall; Olympic Hockey Stadium (Field hockey); Helliniko Baseball Centre; Hellinikon Olympic Softball Stadium; and Hellinikon Slalom Centre (Whitewater slalom).

Cape Colias (Ancient Greek: Κωλιὰς ἄκρα, Kōliàs ákra) was a promontory on the coast of Attica in ancient Greece, located about 20 stadia from Phaleron. The cape is most commonly identified with the modern promontory of Agios Kosmas. The site was historically significant as the location where the wreckage of the Persian fleet washed ashore after the Battle of Salamis, and it was home to a notable sanctuary of Coliad Aphrodite and Genetyllides. The location was also known for high-quality clay used for pottery.