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

"Respectful to the dead, safe and sanitary to the living, dedicated to the Genius of Memory..."

This otherwise ordinary close on the Royal Mile constituted the end of the world for Edinburgh’s poorest residents.

An artist's whimsical transformation of everyday objects.

Birthplace of the "Cat in the Cradle" and a cluster of iconic, original windmills that let the Dutch tame the seas.

A little sculpture with a large wardrobe.

This colonial fort is an intriguing example of Renaissance military architecture.

This opulent 16th-century Maharaja’s palace is a unique mix of Hindu and Muslim designs.

More than half of this Indian palace is drowned but it looks all the more spectacular for it.

The world's second-largest sundial, made entirely out of stone.

The 953 windows undoubtedly make this the world's most beautiful screened porch.

An architectural marvel that combines Gothic architecture with Indian elements.

One of the world’s longest pedestrian suspension bridges.

Elaborate tile work in this railway station tells the story of Portugal.

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

An unassuming music museum recounts the rags to riches story of a dramatic Portuguese genre.

Founded as a refugee camp, now a popular tourist spot.

Traditional 11th-century outdoor tannery.

The courtyard of this small Marinid madrasa is a dazzling example of intricate Islamic architecture.

Thousands of narrow alleyways in an ancient medieval city make up what's believed to be the world's largest car-free urban zone.

An awe-inspiring mosque in Morocco with one of the tallest minarets in the world.

It took 40 years to build this Eden-like garden in Marrakech, later restored by Yves Saint-Laurent.

Fortune tellers, snake charmers, poets, and storytellers all gather on this historic square in Morocco.

The largest madrasa in Morocco once housed more than 900 students within its exquisite walls.