This is a beautiful medieval structure, first built at the end of the 13th century, and the subject of many additions and alterations over the years. Head up the stairs in Piazza IV Novembre and into the Sala dei Notari – completely covered in allegorical and biblical frescoes that date from the 13th century. Entering the palazzo from Corso Vannucci takes you to the Galleria Nazionale dell’Umbria and to two further rooms: the Collegio della Mercanzia and the Collegio del Cambio. The Collegio della Mercanzia is beautifully panelled in wood, probably done by German craftsmen in the 15th century. The Collegio del Cambio has two rooms, the second with stunning late 15th century frescoes by Perugino.

Lagoon Deer Park offers a delightful experience for animal lovers of all ages. Interact with a variety of deer and other animals from around the world in the petting zoo. Cast a line in the well-stocked lagoon, home to rainbow trout, largemouth bass, perch, and more.

The Blue Lagoon is without a doubt the most well-known geothermal spa in Iceland. The signature milky-blue water makes a stark contrast to the surrounding black lava fields and creeping grey moss. The spa is located in a lava field near Grindavík and is supplied by water used in the nearby Svartsengi geothermal power plant. The water temperature stays at 39°C year-round, snowfall or sunshine. Most visitors make the spa their first or last stop, since it's conveniently located only 15 minutes from the Keflavík International Airport (and around 30 minutes from the capital city). If you are buying a tour, it makes most sense to combine the spa visit with the Golden Circle day trip.

Built between the years of 1628 and 1633, St Columb’s Protestant Cathedral is the oldest surviving building in Derry. It's monumental appearance conceals a cosy, intimate interior, and the nearby Chapter House contains a number of historic artefacts.