InterContinental Porto - Palacio das Cardosas A SENSE OF HERITAGE & AUTHENTICITY IN THE HEART OF THE CITY. Located in a newly renovated palace dating from the end of the 18th century, overlooking the imposing Avenida dos Aliados and at a walking distance from all the major cultural highlights such as the Bolhão Market, Ribeira District or the Clérigos Church the Palacio das Cardosas is the ideal place for those looking to meet the city's true essence.