Visiting Castillo de San Cristóbal in Old San Juan, Puerto Rico in December.
Visiting Castillo San Felipe del Morro in Old San Juan, Puerto Rico in December.
A visit to Castle of the Moors (Castelo dos Mouros), an 8th century castle, in Sintra, Portugal on a clear day in May.
Visiting the medieval castle and Victorian Gothic revival mansion of Cardiff Castle in the city center of Wales.