One of Antoni Gaudí’s earliest buildings, built between 1886 and 1890 for the industrialist Eusebi Güell.

A museum dedicated to one of Portugal's most celebrated writers.

In addition to showing films, this one-screen arthouse cinema from the late 1940s is a museum of old film equipment.

A curious carving hides on a marble column in the Mosque-Cathedral of Córdoba.

Horse cemetery on the grounds of Blarney Castle.

This 14th century tower house was once the home of Irish poet W.B. Yeats.

This Bronze Age tomb is the centerpiece of a clearing within a beautiful Irish forest.

The chaotic studio of one of the 20th century's most important artists has been preserved down to the dust.

At this cozy bar tucked down a hidden Galway backroad, Guinness makes the Gaelic come out.

This natural sea arch highlights Ireland's rugged coastal beauty.

This ancient Irish landscape boasts hundreds of legendary ruins.

A stunning Victorian abbey and walled garden on a lakefront.

The home of Ireland's last leprechauns is officially protected by the European Union.

Once the longest bridge in Ireland, this rusting span sits abandoned and overrun by nature.

More than 5,000 artifacts donated by the people of the city, plus a room entirely devoted to the band U2.

The 19th-century pharmacy (now a used bookstore) was featured in James Joyce’s "Ulysses," and has changed very little to this day.

The oldest public library in Ireland.

The comedy and tragedy of Oscar Wilde is preserved in a Dublin park, captured in a sculpture of colorful stone.

Dublin's "Dead Zoo" serves as a window to Victorian museum design.

The enchanting archway is the only surviving portal into Dublin's lost medieval wall.

A tiny microvalley etched into the side of Knocknarea Mountain hides another world.

This Irish show cave is said to have been the site of a Viking massacre that claimed 1,000 lives.

Perfectly preserved ancient monastery in an impossibly dramatic location on a rocky island in the Atlantic.

The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.