This massive collection of British military artifacts includes the heartbreaking personal letters of the men in the trenches of WWI.

This 500-meter-long memorial pays tribute to the hundreds of thousands of lives lost to COVID-19 in the UK.

This long-hidden space above Westminster Abbey now displays the battle gear of the legendary King Henry V.

The perfectly preserved underground rooms where Churchill plotted the war against Germany.

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

An American lighthouse stands on an island cliffside in Taiwan.

Construction of Barcelona’s iconic (but controversial) church was finally completed in 2026—a century after the death of its architect.

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

The little church's beautifully frescoed ceiling has earned it the nickname “the Sistine Chapel of Madrid.”

A must for film lovers in Madrid and home to the Spanish Film Library's projection space.

For decades, Puerta del Sol has been illuminated by a giant, guitar-wielding bottle of sherry.

This sweet-toothed bear searching for snacks has been a symbol of Madrid for decades.

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

Order cookies baked by cloistered nuns in a 400-year-old monastery.

Once the grandest synagogue in medieval Spain, it now stands as a memorial of the 15th-century Jewish exile.

The Spanish king's private bathroom embraced the idea of a porcelain throne.

This macabre masterpiece of a mural is one of Francisco Goya's "Black Paintings."

The installation’s official name, “You Who Are Getting Obliterated in the Dancing Swarm of Fireflies,” says it all.

This former factory turned private museum contains surreal and creepy artwork created by Robert Y.

This Taiwanese promontory is covered in otherworldly hoodoo formations.

Large collection from the 3rd millennium BCE.

The oldest cemetery of modern-day Athens blends the modern and ancient worlds.

The railway carts travelers to central Athens's highest peak, which offers stunning vistas of the city.

This mystical orb covered in strange symbols is thought to have been used in ancient Greek magical rituals.