Lavrio (known in the 19th century as Lavrion Laboratories) is a small town in the southeastern part of Attica and the seat of the Municipality of Lavreotiki. It is known from classical antiquity for the extraction of silver, one of the main sources of income for the city-state of Athens, for the production of coins and the financing of the Athenian fleet. Part of the city is a traditional settlement. Lavrio can be described as a place of great historical and monumental density.