This is a neo-gothic castle that was built in the bay to monitor the boats coming in and out, although it is most famous for being the venue of the last Imperial Ball before Brazil became a republic in 1889. It now holds exhibitions about its history.
Avenida Alfredo Agache, Praça Quinze; Tel: 2104 6721
Send your feedback or queries to been.there@guardian.co.uk
Search Been there