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

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

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

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

Step into Narnia at this small park featuring statues from "The Lion, the Witch, and the Wardrobe."

The last Victorian market in Belfast.

The world's longest continuously running show has played at this small West End theater since 1974.

Shop at the 200-year-old store where Julia Child stocked up on copper cookware.

Marvel at the opulent Art Nouveau interior while dining on dirt-cheap French classics.

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

A museum on the history of Paris, including a set of Napoleon's toiletries, Proust's room, and relics of the Revolution.

Down a cobblestone alleyway is a museum dedicated to Romanticism, with a secret garden.

High atop the Eiffel Tower is a small apartment built exclusively to entertain the science elite and make the rest of Paris jealous.

This charming cobbled backstreet is the most Instagramable street in Paris, much to the residents' annoyance.

This iconic Parisian bookstore doubles as the "Tumbleweed Hotel" for traveling writers.

This massive library holds what was once the largest book collection in the world.

A boutique perfumery fashioned to look like a Victorian-era shop.

An unusual ode to the late Irish playwright, complete with a squiggly bust and coffin-shaped bench.

More than a million titles fill the labyrinthine shelves of this prestigious private library.

Drink your espresso at a Victorian-era urinal in this underground-restroom-turned-coffee-bar.

After nearly 60 years, there's still a bear at Paddington Station looking for help.

A special shop catering to the needs of things that go bump in the night, and also helps kids become writers.

The quaint little store that is said to have inspired a famous Dickens novel was only given its name after the book was released.

This London pub hides a peculiar secret: a recreation of the rooms shared at 221b Baker Street by Sherlock Holmes and Dr. Watson.