Note: The Acropolis Parthenon operates on a timed entry system, requiring visitors to book a date and time slot in advance. Arrive 30 minutes early for a hassle-free experience—you can enter up to 15 minutes before or after your chosen time slot. The Acropolis offers free admission on select days, including March 6, April 18, May 18, the last weekend of September, October 28, and the first Sundays from November to March. The Acropolis Museum also offers free admission on March 6 (Melina Mercouri Day), March 25 (National Holiday), May 18 (International Day of Museums), and October 28 (National Holiday). Concession eligibility The Acropolis: Children & young people: EU citizens up to 25 years old receive free admission with a valid ID or passport. Non-EU visitors aged 6 to 25 are eligible for reduced admission, while children under 5 years old, regardless of nationality, enter for free with valid identification. Senior citizens: EU citizens 65 and over qualify for reduced admission with a valid ID. Persons with disabilities: Free entry for visitors with 67% disability or higher and one escort, with a valid ID or disability certificate. Greek citizens (special categories): Free or discounted entry for unemployed citizens with an ID and unemployment card, and for large families with a valid certificate. If a child has disabilities, a Disability Certificate is also required. Acropolis Museum: Children & young people: Free entry for EU citizens up to 18 years old with a valid ID. Non-EU visitors up to 18 years old are eligible for reduced admission. Senior citizens: EU citizens 65 and over qualify for reduced admission with a valid ID. Persons with disabilities: Free entry for visitors with a disability certificate, along with one escort if applicable.