St. Anne's Cathedral

Belfast's Anglican cathedral, begun in 1899, mixes Romanesque and Celtic Revival styles with a distinctive spire completed in 2007. The building houses mosaics, stained glass, and the tomb of Lord Carson, Ulster's famous unionist leader. At 45 minutes and free entry, it works well slotted between larger visits rather than as a standalone destination.

Priority: Medium - include with 2+ days Time needed: 45 minutes Best for: belfast's most important religious building with Skip if: You have cathedral fatigue or limited interest in religious architecture Cost: Free

You walk through stone arches beneath a ribbed vault ceiling, examining Celtic knot carvings and colourful biblical windows. The modern spire rises 130 feet above the crossing, visible throughout the nave.

Accessibility: Wheelchair accessible main entrance, hearing loop system available

Belfast's most important religious building with unique Irish architectural details. It is not the first thing you should see in Belfast, but with two or more days it fills a gap the major sights leave. Mornings are quieter if you want to take your time. Free entry makes the decision easy - walk in, see if it holds your attention, and leave when you have had enough.

Skip if: You have cathedral fatigue or limited interest in religious architecture

• Look for the Good Samaritan window above the altar.
• Check service times if you want to hear the organ.
• The spire has 40 bells but limited ringing schedule.

Insider tip: The mosaic floor near the altar uses marble from 17 countries

Interior photography allowed, best light for windows in late morning