Designed to resemble foreign architecture, this mosque-looking structure was used to pump water to a royal fountain.

This sprawling Jewish cemetery is one of the largest in Europe.

Famously misunderstood wonder of the ancient world

Once called "the biggest room in the world," this Victorian-era hall is so large that it contains a smaller 1970s heptagonal theatre.

A historic London cemetery now serves as a nature park incorporating gravestones & memorial statues.

A little slice of Japan and its aesthetics in London's Holland Park.

This statue in Holland Park might be one of London’s oldest outdoor statues, but its exact origins are unknown.

This medieval church tower has maintained its clockworks since the 16th century.

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

Charles Babbage's proto-computer, painstakingly brought to life.

One part local history, 99 parts gruesome haunted house.

Tiny memorials honor individual victims of the Holocaust.

A replica of the gaslit streetlamp under which three teenagers founded a football club.

These mysterious Viking chess pieces spent centuries hidden on a remote Scottish island.

These wire animal sculptures commemorate the exotic inhabitants that once called the Tower of London home.

A unique tribute to the millions of animals who served and died for the British military.

Spitalfields' regal market goat is said to be a monument to the area's migrant population but most are pretty sure it's just a goat.

These docile dragons are ideal inhabitants for the conservatory greenhouses.

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

Tucked away in the Tower of London is the weapon once used to execute high-profile prisoners.

The watery entrance for condemned prisoners heading to the Tower of London is still visible along the Thames.

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

Bronze sculpture celebrating the relationship between Churchill and Roosevelt.

The library houses an incredible collection of some of the world's most impressive books and manuscripts.