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

A unique seaside cave where Aleister Crowley faked his own death.

Men in rubber-soled boots serve as your "brakes" on this toboggan ride Hemingway described as "exhilarating."

Italian poet Dante Alighieri is entombed in this small mausoleum in Ravenna, and his hometown of Florence has never been too happy about it.

This community on a small Venetian island has taken to painting their houses in bright neon hues.

Breathtaking and huge 430 year old maps of Italy.

A small window on Via Piella offers a lovely and rare peek at Bologna's lost canals.

Hundreds of stone stairs and a winding medieval bridge connect this haunting Spanish island to the mainland.

Two towns are linked by an engineering marvel masquerading as a boring suspension bridge.

Giant topiary dog once played a role in a terrorist bomb plot.

One of Ireland's most infamous prisons for rebels including men, women and children.

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

The somber sculptures commemorating Irish Famine on the river Liffey in Dublin.

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

Madrid's romantically ornate crystal palace has been offering shelter to plants and art for over a century.

A stone slab in Madrid marks the point from which the distances of Spain's national roads are measured.

Vibrant street art created with mixed media.

This massive fiberglass Gulliver turns every visitor into a Lilliputian.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

The celebrated eyesore created by starry-eyed sweethearts.

One of the Seven Wonders of the Modern World holds the world's tallest metal staircase.

A community of artists and entrepreneurs seeks a simpler life on London's waterways.

Catacombs turned marketplace.

Hear the quietest sound from across the dome.