- ...that the Callaici were a single or various tribes living in the North of Douro River in Northern Portugal and Galicia?
- ...that the Monserrate Palace is one of the finest examples of Sintra's Romanticism, along with other nearby palaces such as the Pena Palace?
- ...that Viagens Abreu is the oldest travel agency in the world and was established in Porto in 1840 by Mr. Bernardo Abreu and is still family owned five generations later?