It is located in Praça Guilherme Stephens, city of Marinha Grande, district of Leiria, in the province of Estremadura, part of the Intermunicipal Community of the Region of Leiria, in the region of Central Portugal
 
The Glass Museum houses collections that testify to Portuguese industrial, artisanal and artistic glassmaking activity from the mid-17th/18th century to the present day and is the only museum dedicated to the study of art, crafts and the glass industry in Portugal.

In the field of plastic arts, it represents artistic and design trends, seeking to bring together an international collection of contemporary artistic glass made up of dozens of works by Portuguese and foreign artists from the 20th century to the present.

In addition to its important role in studying glassmaking industrial activity in the past, the museum also focuses on documenting the current activity and encouraging its continuation in the future.

The Glass Museum is open to the public six days a week with a diverse cultural program and is one of the important centers of cultural appreciation in the glass area and a tourist attraction in the Marinha Grande region.

The museum encourages the participation of different types of audiences and particularly the local community in the development of its objectives, functions and activities.

The collection of the Glass Museum, gathered since the end of the 1980s (by the Portuguese Association of Industrial Archeology - APAI) began to be created in mid-1992/1993, since the beginning of the 20th century, by the hand of some individuals linked to the National Fábrica de Vidros – Fábrica Escola Irmãos Stephens, a fund of production pieces began to be created that would be created/integrated into a museum.

The main collection that the Glass Museum received and which served as the basis for its installation was that from the Fábrica Escola Irmãos Stephens, in which the museum collection contains glass pieces, furniture, machinery, books and documentation.

A small collection collected in the late 80s by APAI from the IVIMA, Dâmaso, Lusitana and Manuel Pereira Roldão factories.

The collection consists of collections of Portuguese-made glass from the mid-17th/18th century to the present (Oliveira de Azeméis, Marinha Grande, Ílhavo, Lisbon) as well as various documentation, tools for glass manufacturing, machines and molds.

A collection of contemporary art in glass that results from some initiatives that the museum has been promoting began to be created in 1999 through offers of works by several Portuguese and foreign artists to the museum.

The collections cover glass testimonies of the production of certain national manufacturing centers/factories, periods and styles of production, types of use, catalogues, production drawings, clothing, objects of daily use by professionals linked to glass with cultural and social significance.