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I believe there may be some confusion in your request. County Meath (Co. Meath) is actually a county in Ireland, not a city, and "MH" is its county code rather than a city abbreviation.
Here's a travel description for County Meath:
County Meath, known as Ireland's "Royal County," is home to the spectacular ancient monuments of the Boyne Valley, including the UNESCO World Heritage sites of Newgrange, Knowth, and Dowth - Neolithic passage tombs older than Stonehenge and the Egyptian pyramids. Visitors can explore the historic Hill of Tara, once the seat of Irish High Kings, and enjoy the rolling green countryside that epitomizes Ireland's natural beauty. The county offers an perfect blend of archaeological wonders, Celtic heritage, and authentic Irish countryside experiences just north of Dublin.