Great museum. Must see. If you're going to make a trip to Cadiz, it's a perfect place to learn its…read morehistory.

Fun free museum to see Roman and Phoenician ruins under the city streets. Free to enter but you…read morehave to pick up tickets at the ticket booth ahead of time. I was there in December on a weekday and there were only three time slots (11:00/12:00/13:00). The ticket office opens at 10:45 so be there then if you want to have your choice of time slots.

The tours here last about 45 minutes. While there is no admission fee, you *DO* need to reserve a…read moreticket, since tour group-size is limited. Here you will see Gadir (Cádiz) in situ from the time it was colonized by the Phoenicians, through the Roman period. The building houses a beautifully preserved space, with translucent walkways over the ruins. Different-colored gravels distinguish between Phoenician and Roman structures. A multimedia presentation at the beginning lends a wonderful overview to the space throughout its history. There are even skeletal remains of an unfortunate that was overcome by smoke during a fire some 2,800 years ago. The tour guide we had spoke wonderful English, was VERY knowledgeable, and enthusiastic. Kudos to her! The only reason for losing a star: apparently in very recent history, lightning knocked out the air conditioner and dehumidifier for a while... this has led to some very musty odors at one end of the site, that made it difficult for us to breathe without covering our noses. This site is definitely worth a visit!