Igreja do Carmo, a Catholic center in Lisbon for more than 300 years before the 1755 earthquake, is one of the few medieval buildings left to this day and one of the most memorable historical sites in the old city of Lisbon, although its roof has been incomplete, its roof has collapsed, and its pointed arch spires point directly to the blue sky. The Museu Arqueol & _3; gico do Carmo Archaeological Museum is now located in the ruins of the Kalmo Cathedral. The entrance is the ticket office with 3.5 euros per ticket. From the side door to the church, the tall bundles on both sides and the incomplete spiral arch stone frame all show the magnificent momentum of the church's architecture. Walking down the empty passageway between the broken walls of the Karmo church and entering the back hall with two automatic doors blocked is the Karmo Archaeological Museum. The Museum has two exhibition rooms on the left and right, which display some of Portuguese modern archaeological finds, such as stone figures, sarcophagus, mummies and so on.