This restored Portuguese cafe may well be the most beautiful place in the world to grab a Big Mac.

One of the most beautiful bookstores in the world hides a neo-Gothic interior behind an art nouveau facade.

This former charity hospital for elderly clergy houses some of Seville’s most treasured paintings.

The current seat of the Parliament of Andalusia was once the epicenter of the Great Plague of Seville.

Spanish architects used seized Muslim gravestones to rebuild parts of the fortress.

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

Notorious artist squat renovated into legal studios.

This former Masonic lodge has been transformed into part museum, part bar, all awesome.

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

The former home of a mad diplomat is said to still be marked in bloody, arcane scrawls.

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

A charming 17th-century alley is lined with secondhand bookstores and antiquarian shops.

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

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the Harry Potter films.

Eighty million natural history specimens call this gargantuan museum home.

This shop and gallery is a modern-day cabinet of curiosities, unassumingly positioned along an urban thoroughfare.

Putting the "mod" in "modular" since 2000.

"We gonna rock down to Electric Avenue, and then we'll take it higher..."

There's an exclusive Beefeaters pub hidden in the Tower of London.

This museum tucked below a charming cafe gives a brief snapshot of photographic history.

This home on a quiet suburban street is completely covered with vibrant mosaics.

The London pub overlooks where the Mayflower was moored before setting sail for the New World.

This educational institution and reference library specialize in the psychic arts and mediumship.

An archive of ceramic eggs painted to record clowns' personal makeup designs.