Complex sentence: It is situated across the square from the Speyer Cathedral, fosusses on the History of the Palatinate and has preserved about 1 million artifacts, the oldest being an approx.190,000 year old hand axe.
Split into simpler sentences: It is situated across the square from the Speyer Cathedral. The museum's focus is on the History of the Palatinate; it has a collection of about 1 million artifacts, the oldest being an approximately 190,000 year old hand axe.