19th-century scientists would make the pilgrimage here to verify the precision of their measuring sticks.

The largest Chinese cemetery in the world outside of China dates back to the 15th century.

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

This statue was given to France by the United States to commemorate the centennial of the French Revolution.

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

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.

The 2,000-year-old Roman columns are hidden within Barcelona's Gothic Quarter.

A vista of the city and sea from atop the little-known viewing deck on an unassuming Columbus statue.

Mountain where Jesus was first tempted by the Devil.

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

This semi-secret storybook hedge maze is also the oldest garden in the city.

A beautiful but toxic fountain of mercury.

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.

London's only public statue of the much-married monarch adorns the gate to St Bartholomew’s Hospital.

Richard III supposedly disposed of his nephews' bodies here in an effort to seal his claim to the throne.

The wooden telephone box hidden away in London's Piccadilly was the original prototype of the iconic kiosk.

This hidden green space is the city's second largest conservatory.

This former medical factory gives home to cutting edge arts in the shadow of a gas works.

The last remaining example of the boatmen's perches that once dotted the south bank of the Thames.

A mysterious pair of mice eating a piece of cheese is London's smallest public sculpture.

Ship-sized kinetic sculptural fantasy.

After nearly 60 years, there's still a bear at Paddington Station looking for help.

A collection of comics, graphic novels, animation and caricatures devoted to exploring this often overlooked art form.