The monuments of Goa are the blend of Hindu, Mughal and Portuguese styles. Goa was under the rule of Portuguese for almost four centuries. Many monuments in the form of churches, mansions and cottages, thus, bear a striking resemblance to the typical Portuguese style of architecture. Goa was also ruled by the Mughals due to which the state has many monuments built in the typical Islamic styles. However, the ancient Goan structures are constructed in simple and easy styles. These colossal monuments also mirror the culture and heritage of Goa. The monuments of Goa consist of several historical sites, mansions, museums, churches, forts and palaces. Several well-known monuments were designed by Spanish architects and Georgian architects.

Monuments of different architectural styles are scattered all over the region. The unique features of the monuments in Goa include central staircases, balconies upstairs and verandahs with a central courtyard. They used to decorate their buildings with blue and red colours and the windows with glass or oyster shells. The Portuguese introduced the western culture to Goa through their monuments during their imperial power. Cabo Raj Niwas, Cabo Fort, Aguada Fort are some of the major monuments of this era.

Several monuments of Goa like churches and convents are constructed in between the period of 16th and 17th century AD. They are made up of laterite and lime plaster which display the fusion of Renaissance and Baroque style. These monuments include Se` Cathedral, Basilica of Bom Jesus, Chapel of St. Catherine, Convent of St. Francis of Assisi and many others which are considered as the architectural heritage and comes under the UNESCO World Heritage Site.

Despite the Portuguese influence, Goa is famous for several Hindu and Muslim monuments. The Hindu monuments consist of some basic features like sentinels or the grand pillars, the presence of lakes, and betel and coconut trees. Whereas the Muslim monuments are present with the features like typical Islamic arches, rectangular prayer halls and pointed terracotta tile roof. Safa Masjid, Sri Mangeshi Temple, Sri Ganapati Temple are some of the famous religious monuments of Goa. Even today, these monuments stand tall representing the great historical importance. They have always created an enormous impact on the tourists from all over the world.