The Tumuli fields are the most distinguishable historical landmarks of Bahrain. There are a number of them in the northwest of the island. I visited them while driving around this small country for a day, taking in its first oil well and Riffa Fort as well.

The Tumuli field at Hamad was the first one that I encountered - it's located next to the main road. Somehow I had thought of it as a remote archaeological site, but this field (and the others that I saw) is right in the middle of a town. Think of the size of a football pitch or a small park. And then it's just sandy hills with small rocks as far as you can see. Unfortunately, there are no interpretative signs on site.

The bigger field at A'Ali I even found full of garbage and litter. I don't think that they are being worked into proper tourist sites.

The National Museum of Bahrain has good displays about these tumuli. There are so many of them left (170000!) that once it was even thought that people from the Arab mainland were buried here (and that Bahrain was an island solely for the dead). But statistics proved that there were tumuli accounting for 1 dead every 3 days, leading to a local population of about 4500 inhabitants.