As youâ€™d expect in an ancient city, Lisbon holds a number of treasures from other civilizations under ground.Â Every time a hole is dug up for a new metro station, an underground car park, or for any new building, it is common to find artifacts from the Roman, Moorish, and other periods of Lisbonâ€™s past. Some are taken to the cityâ€™s museums, other less important creations are buried forever.
One find that has been kept in its original location just as it was found are the â€œRoman Galleriesâ€ in the center of the city. Theyâ€™re found on Rua da Prata right below a bank, and are only open to visitors once a year. This year they are open on the 26th, 27th, and 28th of September.
Entrance will be free, and taking place between 10AM and 6PM.Â Experts from Lisbonâ€™s City Museum will take you through the space that was only discovered during the Great Earthquake of 1755. It is believed to be a cryptoportico (a vaulted support for a forum or Roman villa) dating between the first century B.C. and first century A.D. when Lisbon was the Roman city Olissipo.
Stand by number 77 of Rua da ConceiÃ§Ã£o and wait for your turn to be allowed in. You may not book in advance, and since only a few people canÂ enter at a time, be prepared to wait a while.
If you enjoy archaeological remains, also visit the free Roman Theater Museum and the scant ruins behind it. ThenÂ go down the streetÂ to the cityâ€™s medieval cathedral which shows archaeological digs in its cloisters (see photo above).Â Complete your archaeological lesson with a visit to the Archaeology Museum in Belem.