Love visiting ruins and this did not disappoint. The grounds are well maintained and lovely. The museum really well documents Panama's history and learned a lot. It is $10 pp for foreign visitors and that includes the tram to drive you from the entrance to the main building with museum and cathedral ruins.
Impressive ruins of the Church of Santo Domingo in Casco Viejo. Built in 1678 and destroyed by fire in 1781. Famous for its long-standing arch, Arco Chato. Both a haunting and a beautiful sight.