Dublin's most modern, visually spectacular bridge is modeled after Ireland's national emblem.

A particularly disconcerting tribute to Irish martyrs.

The modern birthplace of Irish freedom.

The house where the writer spent his formative years.

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

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

The block of aged dairy is probably still edible after 2,300 years in a peat bog.

An angelic, yet demonic-looking figurine presides over one of Glasgow's most ancient streets.

This astronomically-aligned stone circle was the first of its kind to be built in Great Britain after a 3,000-year hiatus.

This two-legged horse statue celebrates a beloved cartoonist and his quirky characters.

The final resting place of a poisoned lover whose death was at the center of one of Glasgow's most sensational murder trials.

Displaced highlanders would take shelter from the wet Scottish climate under the large walled bridge at Glasgow Central Station.

The oldest house in Glasgow is now a museum dedicated to the city's medieval history.

This stately monument has been wearing a traffic cone hat for decades much to the delight of the locals.

Hidden on a cobblestone street in Glasgow, a Czech Cajovna-inspired teahouse serves as a hangout for Bohemians.

The ornate structure is part of a building boasting more marble than the Vatican.

Dedicated to the history and culture of smoking, this small museum now includes a vape lounge.

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

This Parisian gem is one of the most incredible ethnographic museums in the world.

Museum on French naval history, with magnificent figureheads, a historic diving suit, and a boat used by Napoleon.

This Paris art space celebrates the creativity and ingenuity that springs from abject poverty, especially in Africa.

The former home of France's controversial pop maestro is almost completely covered in ever-changing tributes and graffiti.

This banal Parisian entranceway is not what it seems.

Where the high court feasted, frolicked, and high courtesans put their royal lovers' diamonds to the test.