The invasion that never came
The Fort of Cresmina in Cascais, Portugal, was built in 1762 during the Fantastic War to guard against a Spanish landing that never happened. Rebuilt and abandoned several times over the following century, it passed into private ownership in 1908 and was later converted into a restaurant beginning in 2020.
Soldiers guarded a beach the enemy never reached
Soldiers dug in on the beach below and waited for an invasion that never reached them. Portugal and Spain were fighting the Fantastic War. This was a short, strange conflict. It was tangled up with the much bigger Seven Years' War raging across Europe. Commanders feared enemy troops would land on this stretch of coast. They might march on Lisbon, 20 miles away. The Count of Schaumburg-Lippe was a German mercenary general. He was hired to modernize Portugal's defenses. He ordered three batteries built along two miles of shoreline covering Cresmina and a quarter mile. The Fort of Cresmina was the southernmost of the three. Its guns aimed to cross fire with a neighboring fort down the coast. No landing ever came. The garrison held a beach that stayed empty, guarding against soldiers who never sailed.
A rebuilt fort was abandoned by its own army
The fort that never fired a shot in anger spent the next seventy years being rebuilt, then left to rot. Engineers rebuilt it in 1793, but it sat unused through the Peninsular War against Napoleon's armies a decade later. By the 1820s soldiers had walked away from it entirely. Then came a civil war between two brothers fighting over the Portuguese throne. Miguel I of Portugal seized the crown and ordered the fort restored and expanded. This work happened between 1830 and 1832. It didn't last. On July 24, 1833, his own retreating army disarmed the fort and abandoned it for good. Nobody rebuilt it again. By 1854 visitors described it as a ruin. Money set aside for repairs in 1850 was never spent.
The ruin sat forgotten until 1895, when it went up for auction. Ownership passed through several hands before 1908. António Augusto Carvalho Monteiro was a wealthy collector. He was known for building an eccentric estate elsewhere in Cascais. He bought the old battery in 1908. It stayed with his descendants for over a century, crumbling quietly by the sea, until builders began converting it into a restaurant in 2020.
A pepper ship bound elsewhere sank off this coast
The sea off this coast has swallowed cargo meant for somewhere else. A ship loaded with pepper went down not far offshore. It carried crates of Chinese porcelain made for the Wanli Emperor's court. It carried bronze cannon stamped with the Portuguese coat of arms. Cowry shells packed for the slave trade went down with it. The vessel never reached the market it sailed for. It sat under about 40 feet of water for close to four centuries before divers found it in 1994. Researchers named it the Nossa Senhora dos Mártires, the Pepper Wreck, after the ship history records as lost near this river mouth in 1606. The mouth of the Tagus has claimed more than one ship the same way. This one simply happened to be found.
An earthquake did what a century of forts could not
The threat this coast built forts against finally came from underground. On All Saints' Day an earthquake tore through Portugal, Spain and Morocco, killing an estimated 70,000 people. Cascais took the same blow as the rest of the coastline. Whatever heritage and old building stock the town held before that morning was largely gone by nightfall. No army had managed that in a century of batteries and garrisons. The ground did it in minutes.
A Roman dye works ran for centuries then stopped
A mile east, on a hill above the Cresmina dune, a Roman villa ran for hundreds of years. It had a bath complex with three curved pools, a cold room, a warm room and a furnace to heat the floors underneath. Tanks packed with murex shells point to a dye works here, producing the purple pigment shipped through Olisipo to Rome. Two cemeteries filled up over generations. Archaeologists pulled coins from the graves stamped with the faces of four emperors: Constantine the Great, Constans, Constantius II and Theodosius I. The site kept going into the messy final century of the Roman Empire, then it stopped. Nobody rebuilt it. It waited under the ground until Afonso do Paço and Fausto de Figueiredo began digging there in the early 1900s. More work was done between 1968 and 1971. What a short walk east turned up came out of a place people had worked hard and then simply left.
The battery above Cresmina beach stands empty of soldiers now, set for guests instead of an invasion.
Every person, building and event in this story opens into its own dig in the app — and it will dig the ground you are standing on instead, wherever that is.