The Archaeological Museum has been housed at Ermoupoli's town hall since 1899. In its especially arranged halls, there is a great number of archaeological finds on display, not only from the excavations on Siros but also from other Cycladic islands, such as Naxos, Paros, Amorgos, Kea and Ios. Among the exhibits prehistoric tools and other objects (2nd half of the 3rd millennium BC) stand out, which have been found in the area of Halandriani, copper coins, Hellenistic and Roman inscriptions, vessels, sculptures, grave piles and statuettes, all witnesses to the brilliant past of the area.
The Capuchins, or Capukins, Monastery is situated in Ano Siros and is one of the island's most significant sights. The Monastery played a definite part in the island's history and is still known as the oldest assembly area of the elders of the community of Siros. Inside the Monastery is the well preserved church of Agios Ioannis, built in 1635, which, during 1639-1652, was the catholic cathedral of the city, remarkable archives of historical documents and a hero's monument dedicated to the memory of the Sirians who died during the 1912-1922 war.
The church of Metamorphossi tou Sotira (Transfiguration of the Saviour) is the Cathedral of Ermoupoli. It was built from 1821 to 1842 in three-aisled basilica style, and it is the oldest church in town. In the interior, what stands out is a marble-sculpted screen as well as
remarkable icons from the 19th century. Inside the church, the round base of the Roman statue of Adrianos and the grave of Anthimos Gazis has been found. In the pebbled yard with its fine designs is the
entrance to the imposing building of the Metropolitan Edifice.
Jesuits Monastery, built in 1744, lies in Ano Siros. Inside the
Monastery is a well preserved, flat, gravestone dating back to the 3rd century BC and the famous church of Panagia tou Karmelou, built in 1581 and, under the name of Panagia tou Rodariou, was, until 1639, the island's cathedral. In its interior lies, the famous icon of the Virgin (Panagia), which was brought from Rome in 1728. Inside the Monastery is a remarkable library with about 6,000 volumes, documents, old objects and manuscripts, while in the enclosure there are guest's rooms where the visitors receive hospitality.
The Literary Centre of Ermoupoli is housed in the neoclassical
marble building of the "Hellas" Club in the centre of the city. The
building was constructed in 1863 by the architect P. Sampo and
includes many halls for lectures, dinners, receptions and debates,
decorated with beautiful wall and ceiling paintings. In the past,
the building's halls were very popular, as in 1889 when a great
reception was given for the inauguration of the statue of Miaoulis,
in which the king at that time, George the 1st, and the
prime-minister, Charilaos Trikoupis, were present.
On the ground floor of the building is the Public Library which includes over 35,000 volumes, among which there are some which are especially rare.
The outside the building is surrounded by a garden decorated with the busts of eminent Sirians like Emmanouel Rhoidis, Demetrios Vikelas, Timoleon Ambelas and others.
The Historical Archives of Siros is housed in the neoclassical Ladopoulos Edifice in the centre of the city of Ermoupoli at the pebbled Miaoulis square. In the interior, one can find remarkable historical material and documents of various content, which are valuable for the understanding of the city's as well as of all the island's history. In the halls of the Historical Archives interesting seminars, dinners and debates take place which attract eminent scientists as well as ordinary people who are interested in the history of the place.
Vamvakaris Museum is situated in Ano Siros in the region of Piatsa, which is the birthplace of the great Greek composer, who has praised the island extensively. It has been housed, since 1993, in the rooms of a traditional Sirian building, and in its halls, one can find musical pieces, mementos, pictures and objects from the composer's everyday life.
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