10km from of Kilkenny City, history and geology superimpose to form a unique learning experience. The cave was described in one of the earliest Irish texts, The Traids, and has turned up archeological artefacts from almost two thousand years ago. Geologists won't want to miss the calcite cave formations, some of Ireland's finest.

With a unique mix of opera, contemporary dance, musicals, and concerts, the Gothenburg Opera is profiled as a modern and innovative opera house. You'll be entertained by famous actors, directors, soloists, and conductors from around the world, and watch productions that attract international attention.

The Albayzín, also known as Albaicín, is composed of snaking corridors and alleyways that make up the old Arabian quarter of Granada. It is a pleasure just to wander the warren of streets that organically formed back in the Nasrid period (13th–15th centuries). The neighbourhood was declared a UNESCO World Heritage Site in 1994, as an extension of the historic site of the nearby Alhambra.

Debrecen’s symbol is one of the nation’s largest Reformed churches, a building of major historic significance. It was here that Lajos Kossuth read out the Declaration of Independence on April 14, 1849. The wing chair used by the Regent-President on that glorious occasion is one of the church’s most precious relics. The main structure has been rebuilt several times. Today’s familiar Classicist form was developed after the great fire of 1802. You can enjoy magnificent views of the city from the top of the towers, or the steel bridge behind the tympanum. If you are courageous enough to attempt the steep climb up, your added bonus will be a spectacular close-up of the 5.6-ton Rákóczi Bell. In addition to regular services, exhibits of religious history, organ concerts and other musical events are also on the schedule. The church has held the status of national monument since 2013.