4 Best Sights in Coimbra and Central Portugal, Portugal

Above the village of Sortelha are the ruins of a small yet imposing castle. The present configuration dates back mainly to a late-12th-century reconstruction, done on Moorish foundations; further alterations were made in the 16th century. Note the Manueline coat of arms at the entrance. Wear sturdy shoes so that you can walk along the walls, taking in views of Spain to the east and the Serra da Estrela mountains to the west. The three holes in the balcony projecting over the main entrance were used to pour boiling pitch on intruders. Just to the right of the north gate are two linear indentations in the stone wall. One is exactly a meter (roughly a yard) long, and the shorter of the two is a côvado (66 centimeters, or 26 inches). In the Middle Ages, traveling cloth merchants used these markings to ensure an honest measure.

Of the mighty complex of fortifications and dwellings that once made up the castle, only the tower and battlements remain. As you enter, note the scale-model replica of the caravel that carried Cabral to Brazil. On one of the side walls is a coat of arms with two goats, the emblem of the Cabral family (in Portuguese, cabra means "goat"). Don't miss the graceful but oddly incongruous Manueline window incorporated into the heavy fortifications. The castle ruins are on a rocky hill to the north overlooking town, and you'll find the small visitor information center next door.

On a hill between Coimbra and Figueira da Foz lies the well-kept castle of Montemor-o-Velho. Climb to the top and you'll be rewarded with some of the best views of the region.

Montemor-o-Velho figures prominently in the region's history and legends. One popular story tells how the castle's defenders cut the throats of their own families to spare them a cruel death at the hands of the Moorish invaders; many died before the attackers were repulsed. The following day the escaping Moors were pursued and thoroughly defeated.

The castle walls and tower are largely intact. But, thanks to damage done during the Napoleonic invasions in 1811, little remains inside the impressive ramparts to suggest this was a noble family's home that once garrisoned 5,000 troops. Archaeological evidence indicates the hill has been fortified for more than 2,000 years. The two churches on the hill are also part of the castle complex; the Igreja de Santa Maria de Alcaçova dates back to the 11th century and contains some well-preserved Manueline additions.

The fairy-tale Castelo de Santa Maria da Feira sits 8 km (5 miles) northeast of Ovar. Its four square towers are crowned with a series of conical turrets in a display of Gothic architecture more common in Germany or Austria than in Portugal. Although the original walls date to the 11th century, the present structure is the result of modifications made 400 years later. From atop the towers you can make out the sprawling outlines of the Ria de Aveiro.