Carrowmore Megalithic Cemetery in County Sligo is the largest and one of the most important, megalithic sites in Europe. Over 60 tombs have been located by archaeologists. The oldest pre-dates Newgrange by 700 years and is older than the pyramids.
Tombs are accessible and a restored cottage houses a small exhibition relating to the site. Visitors are advised to wear shoes suitable for walking on uneven terrain.