Portuguese discoverers have discovered many lands and the seaway from Europe to India in the 15th to the 18th centuries. Along the way they built outposts and fortresses, many of which still exist today all over the world. Similar in design they are often easy to recognize although not in Portuguese hands for many years or centuries already.

List of Forts in Portugal

Name	Location, Link	Built	Today	Image
Forte do Guincho Forte do Guincho The Forte do Guincho, also known as the Forte das Velas is near the Guincho Beach in the parish of Cascais, council of Cascais in the district of Lisbon in Portugal.It has been classified as an object of public interest by the Portuguese government....	Guincho, Cascais	??	still existing
Forte Sao Jorge de Oitavos	Near Cascais	1642	A museum about the Fort itself Link (in Portuguese)
Cidadela de Cascais	Cascais	1410/1594	Initially Torre de Santo Antonio de Cascais in 1410, then Fortaleza da Luz da nossa senhora de Cascais in 1594, then Cidadela de Cascais (ca 1580). Open to the public, used for events.

List of Portuguese Forts in Asia

Name	Image	Other names	Built in	Locality	District	Type	Purpose	Razed	Razed by	Current status	Current owner	Coordinates	Ref
Bombay Castle Bombay Castle Bombay Castle is one of the oldest defensive structures built in the city of Mumbai . The current castle is a structure built by the British on the site of the Manor House built by a Portuguese nobleman Garcia de Orta...		Casa da Orta Manor House Governor House INS Angre	1554	Fort area Fort (Mumbai precinct) Fort is a business district in Mumbai, India. The area was the heart of the city during the 18th century. The area gets its name from the defensive fort, Fort St. George, built by the British East India Company around Bombay Castle...	Mumbai City	Land battery Land battery A land battery is a special type of gun emplacement or anti-shipping naval interdiction fortification used in coastal defense to protect areas such as anchorages, harbors, and rivers...	Administration	–	–	Preserved	Indian Navy Indian Navy The Indian Navy is the naval branch of the armed forces of India. The President of India serves as the Commander-in-Chief of the Navy. The Chief of Naval Staff , usually a four-star officer in the rank of Admiral, commands the Navy...	18.93111°N 72.83750°W	http://cities.expressindia.com/fullstory.php?newsid=47249
Castella de Aguada		Bandra Fort	1640	Bandra	Mumbai Suburban	Land battery Land battery A land battery is a special type of gun emplacement or anti-shipping naval interdiction fortification used in coastal defense to protect areas such as anchorages, harbors, and rivers...	Watchtower, freshwater source	–	–	Under renovation	ASI Archaeological Survey of India The Archaeological Survey of India is a department of the Government of India, attached to the Ministry of Culture . The ASI is responsible for archaeological studies and the preservation of archaeological heritage of the country in accordance with the various acts of the Indian Parliament...	19.04177°N 72.81858°W
Dongri Fort Dongri Fort The Dongri Fort or the Dongri Hill Fort is a fort in Mumbai , India. It is located in the Dongri area. It is in a dilapidated condition and is declared 'endangered'.-References:* *...	Unavailable	Dungarey Forta	1596	Dongri Dongri -See also:*Dongri Fort...	Mumbai City	Hill fort Hill fort A hill fort is a type of earthworks used as a fortified refuge or defended settlement, located to exploit a rise in elevation for defensive advantage. They are typically European and of the Bronze and Iron Ages. Some were used in the post-Roman period...	Defensive	1769	British British East India Company The East India Company was an early English joint-stock company that was formed initially for pursuing trade with the East Indies, but that ended up trading mainly with the Indian subcontinent and China...	Demolished	N/A	18.94090°N 72.83759°W	http://books.google.co.in/books?id=1a-Apmn-K-gC&pg=PA33&lpg=PA33&dq=%22dongri+fort%22&source=web&ots=NIkNL-hd4o&sig=E_KiQNuJVwD2ZpoQl-72tfbw164&hl=en&sa=X&oi=book_result&resnum=10&ct=result#PPA33,M1
Madh Fort Madh Fort Madh Fort is a small fort in northern Mumbai, India situated at Madh Island. It was built by the Portuguese and lost it in February 1739 during the war against Maratha empire. It is secluded and difficult to reach, about from Malad and is the last stop on route 271 of BEST bus service or via...		Versorva Fort	17th century	Madh Island Madh Island thumb|Madh fortMadh Island is a group of several quaint fishing villages and farmlands in northern Mumbai.-Description:Madh Island barely escapes being called a peninsula since only a small creek, bounded by mangroves, cuts it off from the mainland near Aksa...	Mumbai Suburban	Land battery Land battery A land battery is a special type of gun emplacement or anti-shipping naval interdiction fortification used in coastal defense to protect areas such as anchorages, harbors, and rivers...	Watchtower, prison	–	–	Stable	ASI Archaeological Survey of India The Archaeological Survey of India is a department of the Government of India, attached to the Ministry of Culture . The ASI is responsible for archaeological studies and the preservation of archaeological heritage of the country in accordance with the various acts of the Indian Parliament...	19.132283°N 72.794785°W	http://www.maharashtra.gov.in/pdf/gazeetter_reprint/Thane-III/places_Versova.html