Aguada Fort
Aguada Fort is the largest and the best-preserved Portuguese bastion in Goa. This tourist destination is located in Canacona taluka, 37 kms from Margao. It was built by the Portuguese during the period between 1609-12 as a guard against invasions from the Dutch and the Marathas. An interesting feature in the precinct of the fort is a 13 metre high circular lighthouse built in 1864 which was initially used as an oil lamp. It was later renovated and modernised in 1976. The Fort is currently the Central Jail, Goa’s largest prison.

Secretariat
The Government Secretariat is located at Old Goa, Panaji, along the river. Once the Mandovi Viceroy's official residence, it was built at the site of Adil Shah's palace.

Adil Shah Palace
Adil Shah Palace, by the Sultan of Bijapur was the most prominent building in Old Goa. It was the residence of the Portuguese governors till 1695 and in 1759 it became the viceroy's official residence. Today, it is converted into Goa's Secretariat, legislative offices and other government offices. The only remnants of the palace is its gate built in Brahminical style of architecture.

Archaeological Museum and Portrait Gallery
The archaeological Museum and Portrait Gallery, maintained by Archaeological Survey of India (ASI) has been functioning since 1964 in the premises of the convent of St. Francis of Assisi, Old Goa. The collections of the museums are displayed in 8 galleries. These includes portraits and sculptures from the prehistoric to the late mediaeval period. The portraits of Portuguese Governors are placed on the first floor which provides an interesting study in the evolution of court dresses. Other objects on display are lintel of a temple depicting various types of Shikharas, architectural pieces, sati-stones, hero-stones, an inscribed slab containing Kannada inscription of 'Devaraya' etc. The museum is open on all days from 10.00 am to 5.00 pm except Fridays.

St. Augustine Tower and Church
The remnants of the St. Augustine tower and church located atop the Holy Hill in Old Goa is one among the most spectacular monuments in Goa. Both the church and the tower were built in 1602 by the Augustinian missionaries. The 46km high tower that served as a belfry is a part of the facade of the magnificent St. Augustine Church which was abandoned in 1835. In 1871, the huge bell of the tower was moved to the Church of our Lady of the Immaculate Conception. The Church of St Augustine, when it was intact, was supposed to be the biggest in Goa. There were eight richly carved chapels and four altars and a convent with numerous cells and artistic columns attached to the church.

Ruins of St. Paul's Church
The relics of the St. Pauls Church and college lies on the road from Old Goa to Ponda just a short distance from the Gandhi Circle. Constructed in 1543, the church of St. Paul was started as an institution of the Holy Faith for training young converts. The college was the first house of the Jesuit Order in Goa. The church and college which were in a devastated state was fully demolished by the Government in 1829. What remains here is only the archway of the facade of the church. There were some mortal remains of revered St. Francis Xavier which was later taken to Basilica of Bom Jesus.

Church Of the Carmelites
Located in Old Goa to the southeast of the Church of St. Cajetan, is the ruins of the Church of the Carmelites. The church was built in 1621. From the year 1707, the church fell into disuse and ruins, when the Carmelites were expelled from there on their refusal to take the Oath of Allegiance to the king. The facade and a raised pavement, which served as an altar are the only remains found here. 

Institute Menezes Braganza
Institute Menezes Braganza is a prominent museum at Panaji named after eminent Goan freedom fighter Menezes Braganza. Established in 1871, the museum is located at Dr. Pissurlenkar Road, Opp Azad Maidan and was originally called the Institute of Vasco da Gama. The museum boasts of an eclectic collection of paintings, drawings and sculptures, most of them dating back to the Portuguese era. It also exhibits paintings by European artists of 19th and early 20th centuries and Goan artists of the 20th century. The institute houses the Panaji Central library that contains rare collections of book and documents.