An open-air "garden" of mural art that changes weekly.

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

This historic island prison holds one of the dungeons from the Count of Monte Cristo even though it is a work of fiction.

A bookstore dedicated to the intersection of comedy and art.

The oldest giants in Catalonia are now displayed in a 14th-century Gothic church.

This stunning iron gate designed by Modernist architect Antoni Gaudí is filled with mythic symbolism.

Occupied for six centuries by Franciscan Order nuns, this monastery is an amazing ode to Catalán Gothic architecture.

By day this New Orleans square is for pedestrians, but by night it is a kingdom of kittens.

Colorful murals stationed throughout Charlotte bring poetry to everyone.

Tiny horses tethered to antique rings are scattered around the city.

Peruse rare tomes like poetry bound in pearls or books with branches and berries growing out of their spines.

This Art Deco masterpiece has stood in for some of the most famous buildings in comic book history.

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

One of the last umbrella repair shops in Paris upholds the nostalgic art of umbrella making.

The water-powered carriages are long gone, but for over a century this funicular railway has been the fastest route to the highest point in Paris.

Medieval museum built over Roman baths that features famous tapestries of a lady and a unicorn.

A surrealist timepiece by the artist of melting clocks.

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

A little sculpture with a large wardrobe.

Meet the bronze beloved pet to a family of famous peeing statues.

This collection of over 50 murals celebrates Brussels' rich history as the self-proclaimed home of the "comic strip."

Amsterdam's narrowest house facade is a monument to 17th-century tax evasion.

This basement museum explores the art and artistry of fascism.

This impressive collection of rare books on ancient mysticism inspired author Dan Brown.