High Quality Content by WIKIPEDIA articles! The Basel museums encompass a series of museums in the city of Basel, Switzerland, and the neighboring region. They represent a broad spectrum of collections with a marked concentration in the fine arts and house numerous holdings of international significance. With at least three dozen institutions, not including the local history collections in the surrounding communities, the region offers an extraordinarily high density of museums compared to other metropolitan areas of similar size. They draw some one and a half million visitors annually.