The eerie remains of one of Ireland's oldest castles, said to be haunted by the ghost of a woman who brings ill fate.

One of Ireland's best-preserved chambered cairns can be found next to a wishing tree.

One of the oldest lighthouses in the world, this structure was built more than 800 years ago.

This 19th-century prison once held Irish revolutionary Constance Markievicz, writer Frank O’Connor, and a nine-year-old pickpocket.

An elaborate Romanesque archway, built right before the British occupation of Ireland.

When the tide is high, you can see the Atlantic pushing up through a deep, jagged hole in the rock.

This center tells the story of one of the most famous battles in Irish history.

Ireland's most northerly island is hauntingly beautiful. Its lighthouse was the last glimpse of home for many Irish emigrants bound for the U.S.

Horse cemetery on the grounds of Blarney Castle.

The ruins of a sixth-century monastery sit on the banks of the River Shannon.

The burial place of 14 of the executed leaders of the Easter Rising.

A collection of housewares from recent Irish history adjoined by a tower from ancient Irish history.

An 80-year-old plane tree is devouring an iron bench at Ireland's oldest law school.

This Alaskan town appoints the general store's resident feline as honorary mayor.

Tour a Cold War-era U.S. military missile launch site in Anchorage.

One of Alaska's most significant ancient sites, spanning millennia and cultures, is right under the feet of some famously fat bears.

This mile marker stands at the unofficial end of a highway built to defend the United States from a Japanese invasion during World War II.

The cultural center preserves the history of the Tlingit tribe, who have lived in this Alaska village for more than 10,000 years.

Impressive mining ruins overlook a spectacular view of Ireland's Copper Coast.

The symbolic center of Ireland, this summit also offers panoramic views of the countryside.

A former fortified tower now houses a collection of classic communications equipment.

An abandoned faux-pub made famous by a Guinness commercial.

This small Irish village suffered the greatest loss of life when the Titanic sank.

A Neolithic passage tomb said to have sheltered two legendary Irish lovers.