The first three floors are covered with stone, well squared cut drafts, which open on the lights with low arches. On the first floor there is a typical portal which is accessed by stairs, the legacy of the struggles of the times of medieval towns, when they preferred to sleep secure building access by withdrawing the first floor stairs at night. On the second floor window is a narrow elongated slot with a bow resting on shelves. The top is covered with bricks instead of two single windows on the same first two floors, while the latter has no openings. It is the height of each floor are aligned trampling of neat rows of four scaffolding holes each, equipped with shelves, which look like wooden balconies that once had to increase the surface arrange.

The tower is flanked by medieval buildings of particular value for the valuable presence of mullioned windows with nice workmanship. Built in 1280, the Useppi Tower, now called Chigi, belonged to the family of Useppi. The tower, although not very high, is one of the fourteen historic towers of San Gimignano, and is situated in Piazza del Duomo. The Useppi were very powerful “sienese” citizens, owners of many castels. In 1214 the Useppi settled in San Gimignano, where they went to live in Useppi Tower Palace, next to the Palazzo del Podestà, in the beautiful Piazza del Duomo.

When the noble Useppi family became extinct, the heirs who took the properties of the noble family were the family called Chigi-Saracini. The last representative was count Guido Chigi-Saracini in Siena. In 2002 the Cilemmi-Giachi family bought this tower with the personal goal to encourage the combination of the Beauty and History.

The Archive has achieved since then and kept by Cilemmi Giachi family and was later reconstituted with research activities in the past and enriched in the following decades with the discovery of documents and other materials relating to research activities in the long journey of the history of San Gimignano.

The archive consists of important historical past of the arts in San Gimignano; art museum made from them over the centuries and a wealth of documents, ideas, experiences, drawings, letters, artists, bibliographies, stamps, photos, catalogs of Florentine artists, photos and postcards of the time, the war of cultures with newspapers, pictures, posters 1939-1945.

The archiving of paper documents has not yet undergone a true classification and is part of one of the next targets. The works of art on paper have been the subject of exhibitions in Italy and abroad.