This courtly monument celebrates an influential comedian who turned taking the piss out of the powers-that-be into an art.

The house where the writer spent his formative years.

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.

A nun spent 16 years painting the stunning Celtic mural that covers the interior of this WWI memorial.

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.

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

This permanent collection of preserved bodies taken from Irish bogs is one of the leading authorities on such morbid mummies.

One of Ireland's most infamous prisons for rebels including men, women and children.

An Irish church where an 800-year-old mummy is reaching out of his coffin as if to shake hands.

An old, deep well, connected with a miraculous, divine rescue and the patron saint of Madrid.

Remains of the lost church hide beneath this Spanish Parliament building.

Inside this church are the alleged remains of the patron saint of lovers, epileptics, and beekeepers.

This embalmed man is one of the best preserved mummies from the Canary Islands.

A subterranean relic of the Spanish Civil War hides below this picturesque park.

A stone slab in Madrid marks the point from which the distances of Spain's national roads are measured.

This lucky bronze frog was gifted to Madrid by a casino.

The little church's beautifully frescoed ceiling has earned it the nickname “the Sistine Chapel of Madrid.”

This macabre masterpiece of a mural is one of Francisco Goya's "Black Paintings."

The only urban monument in the world designed by the great surrealist painter Salvador Dalí.

This amazing abuela became a diehard metal fan late in life and an icon of Madrid's '80s rock scene.

A whimsical brother of the nearby Fallen Angel statue takes the falling part quite literally.

Abandoned for decades, trains still pass through the now-restored remains of one of Madrid's first metro stations.