Try Pestana Palace Lisboa, Verride Palácio Santa Catarina, Hotel Avenida Palace and Palácio do Governador, all found in this list:
The best markets include Feira do Relógio, Feira da Ladra, LxFactory, Avenida da Liberdade and Mercado de Campo de Ourique, all found in this list:
Try Armazem F, Hot Clube de Portugal, the Music Box, Senhor Vinho and Coliseu dos Recreios, all found on this list:
Some local customs include not eating dinner before 7pm, wearing comfortable shoes and eating snails with beer. For a full list, see here:
The must-visit attractions in Lisbon include São Jorge Castle, Praça do Comércio, Jerónimos Monastery, Ponte 25 de Abril and Belém Tower, all found on this list: