Sky ships, planes, and portraits left as unique tokens of hope and thankfulness.

This is the largest cemetery in Ireland and the first cemetery museum in the world.

These gigantic skeletons tower over visitors and provide insight into the creatures that once ruled over Ireland.

The Grand Lodge of Ireland is one of the oldest in the world, full of fantastical, elaborately themed rooms.

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

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

The mummified heart of a saint lives on in this church—after a brief hiatus when it was stolen.

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

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

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

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

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

Some of the saint's blood and bones are said to reside in Dublin.

A charming flea market shop dedicated to retrofuturistic apparati.

Dolls of all shapes and sizes display the eras of femininity in this spooky and beautiful collection.

Inside a former cabaret, seven floors of erotic art.

The macabre collection of Jacques Sirgent, an expert scholar on the undead and all of their trappings.

Claude Monet was baptized in this lavishly ornate Paris church.

The tradition of open-air secondhand and antiquarian bookselling in Paris dates back to the Renaissance.

The industrial architecture honors the laborers who brought the Exposition Universelle of 1900 to life.

The recovered bones of martyrs slaughtered during The Terror are on display in this church crypt.

A popular shrine where the Blessed Virgin allegedly appeared in 1830, displaying a holy armchair and two incorruptible remains of Lady Saints.

Twelve grave-faced marble angels guard the emperor's tomb at Les Invalides.

The history of radiation is on safe display at the foot of a radiation science laboratory.