The Botanical Garden and Museum was established in 1544 as the first university botanical garden in Europe. The garden is divided into sections that contain the botanical school, gardens, ponds, greenhouses and various buildings. Major collections include herb gardens and arboreta, as well as the old botany institute of late 16th century, with a façade ornamented with sea-shells.

The Irish Museum of Modern Art, also known as IMMA, is Ireland's leading national institution for modern and contemporary art. Modelled on Les Invalides in Paris, the spacious museum presents over 3,500 works, largely produced after 1940 and in a diverse range of contemporary styles. It also hosts a dynamic programme of exhibitions and events, which regularly include bodies of work from its own collection.

Located right in the heart of the city, this thrilling rooftop walkway and its open-viewing platform offer breathtaking panoramic views of Ireland's vibrant capital from the mountains to the sea. Croke Park is culturally significant in that it is the headquarters of the GAA (Gaelic Athletic Association), and the stadium hosts hugely popular hurling and Gaelic football — the most popular sports in Ireland — matches throughout the year.

Christmas Island is one of the world's truly spectacular tropical seabird rookeries. It's not just the number and variety of seabirds or their magnificent splendour that make the island so remarkable, but also their sheer visibility. Around 80,000 seabirds nest here annually, with 23 breeding or resident species. Birds can be seen and heard everywhere on the island, at just about any time of the day. With just a little effort, birdwatchers can easily tick off a full list of residents in a busy week or a more relaxed fortnight. However, the elusive Christmas Island hawk owl keeps many coming back. More than 100 vagrant and migratory bird species have been recorded here, including eight breeding seabird species and one subspecies. The most numerous is the wide-ranging red-footed booby, which nests in colonies in trees in many parts of the coastal shore terraces. You may see the endangered Christmas Island frigatebird soaring above Settlement — it's the world's rarest frigatebird and nests only on the island. The golden form of the white-tailed tropic bird is an endemic subspecies unique to Christmas Island. Known locally as the golden bosun bird, this stunning bird is graceful in flight and has been adopted as the island's fauna emblem.