Founded in 1028, this cathedral is the spiritual heart of the city, and one of the top visitor attractions in Dublin. Step inside and bask in the serenity of the cathedral’s beautiful interiors. Make sure to see the fascinating medieval crypt.

Push your limits at Parque Aventura, an adventure park located a ten-minute walk away from Oura Beach. Jump from tree to tree with zip lines and rope bridges that vary in height and difficulty.

Ponte Pietra is Verona’s oldest bridge, built by the Romans and still standing—well, mostly. Parts of it were rebuilt after WWII, but you can still see the original stonework. The bridge crosses the Adige River near the Roman theatre and offers one of the best views back toward the old town, especially at sunset.

This beautiful example of Spanish colonial architecture contains a small museum dedicated to the Spanish Inquisition's brutal persecution of heretics once carried out in these very chambers. Visitors can still see some of the torture devices used to extract confessions of heresy and witchcraft, along with some of the questions used in "witch" interrogations, which are still displayed on the museum wall. Needless to say, no prisoner could hope to be acquitted of their purported crimes against the Catholic Church, and most met their tragic end at the very guillotine still on display in the courtyard.