Soon after its unveiling, this giant inverted globe sparked controversy and was vandalized.

A jumble of concrete on the corner of one of London’s terraced buildings is actually a work of art.

A charming 17th-century alley is lined with secondhand bookstores and antiquarian shops.

An easily overlooked stretch of ornate window fronts and gaslight lamps that could be right from the pages of Dickens.

Installed at a chaotic intersection, this gave London traffic cops a place to hang their heavy woolen coats.

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

At the top of the hour, figures of the London department store's two co-founders emerge and bow to each other.

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

Bronze sculpture celebrating the relationship between Churchill and Roosevelt.

Heralded as the oldest statue in London.

A plaque marks the underground site of one of London's "lost rivers."

These official units of measurement—including chains and perches—lie hidden beneath tourists' feet in a popular London hub.

London's smallest police station is barely the size of a phone booth.

Sometimes called the Banksy of Madrid, Muelle was a pioneer of street art in the Spanish city.

This little sun pays homage to a massive gate that once stood at this location.

This modest relic, with rich history as a strategic fort through multiple eras.

Famously misunderstood wonder of the ancient world

Once designed as the entrance to Buckingham Palace, this structure was later relocated and stands as a victory arch.

An unusual round church in London with a Templar past.

London's last remaining public soapbox site has seen speeches from Karl Marx, Vladmir Lenin, and George Orwell.

Giant, friendly pelicans in Central London, the most unlikely of places.

A hands-off space for graffiti artists to hone and display their skills.

A controversial art piece that harkens back to local folklore.

These "mermaids" that surround a plaza in Segovia are rather sphinx-like.