There is a good selection of cheap hotels in Barcelona near to the Catalonian Museum of Archaeology. This museum consists of several different parts, and has prehistoric artefacts, ancient Roman and Greek artefacts, as well as other items on loan from other museums such as the Archaeological Museum of Girona and the Archaeological Museum of Barcelona. It contains archaeological items from many sites of interest, as well as monuments and items from various important settlements such as the Iberian settlement of Ullastret, and the Monuments of Olerdola.
The museum has recently been set up in the former Palace of Graphic Arts, where all of the display sections were been brought together from different sites because the Government of Catalonia decided to revive and improve all of the museums in and around the city. So to make the most of your visit, make sure that you stay in a cheap hotel in the vicinity of the Catalonian Museum of Archaeology in Barcelona.