After a profound show of devotion for his master, a dog becomes the symbol of loyalty for an entire nation.

Once a black market electronics marketplace, now an otaku shopper's paradise.

This Buddhist temple is home to the graves of the Japanese national legends, the 47 Ronin.

The original "capsule building" is a masterpiece of Metabolist architecture.

This bridge was constructed from the rubble of the infamous Bastille.

A monument to the three wars that led to German unification towers within a Berlin traffic circle.

Tiny memorials honor individual victims of the Holocaust.

Beneath the impressive baroque cathedral that rises from the center of Berlin lies the largest collection of Prussian royals in the world.

The bunker where Hitler took his own life is hidden under this deliberately ordinary parking lot.

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

The iconic boulevard is the perfect place to catch sight of a bicycling skeleton, a levitating Satan, or a chef with his head stuck in a pizza.

Step inside the first house designed by Catalan architect Antoni Gaudí, considered to be one of the first Art Nouveau buildings.

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

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

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

An architectural oddity hides in plain sight on this iconic London bridge.

This marine reptile was discovered by one of the 19th century's greatest fossil hunters.

This luxury shopping lane has been protected by its own tiny police force for over a century.

Scattered throughout London are ancient remnants of the city's former bounding wall.

The final resting place to 300 Victorian-era pets hides inside the city park.

Eighty million natural history specimens call this gargantuan museum home.

Only 380 kV Powerline in Europe not directly interconnected to the European 380 kV Grid.

A tilted half-timbered house from 1672 is built into a salvaged segment of a medieval wall.

A UFO-shaped event building originally intended to be a science museum showcasing the future.