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

These ornate arches show how the course of the River Thames has changed.

The pretty iron lamp is a reminder of the architecture underneath London's streets.

A labyrinth hides in plain sight at each of the city's 270 Tube stations.

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

A 300-year-old tea shop that brought tea to the English people, not to mention the Queen herself.

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the Harry Potter films.

An array of ancient artifacts from Bronze Age Bristol and other civilizations are housed in this museum.

A medieval cave used to shelter local hermits now holds nearly 200 old Quaker gravestones.

Chester Cathedral is home to a unique painting crafted on a canvas of cobwebs.

The western face was supposedly left clock-less to snub the Welsh.

Mysteriously stacked storefront paths give this medieval British town an iconic style like none other.

Be on the lookout for the symbolic insect all over the city.

Fascinating town where normal life interfaces with the occult.

This hill and tower are steeped in legend, from King Arthur to the Holy Grail.

This Grade II Listed Building with an Art Nouveau façade once contained a unique print shop.

A 142-foot-tall Q-tip on Bristol's skyline.

A plaque claims this artwork outside a children's hospital was used in the 1998 Quidditch World Cup.

It houses a menagerie of wondrous taxidermy specimens from around the world, including the remains of a famous gorilla.

17th-century merchants in Bristol nailed their deals by placing money on these pedestals.

The unusual clock on this 18th-century market building has an extra minute hand for "Bristol time."

A historic, reportedly haunted pub that provided inspiration for several famous adventure novels.

Home to one of the tallest church spires in Europe, this historic church once played host to King Henry VIII and Anne Boleyn.

A giant roundabout made up of six smaller roundabouts can befuddle the uninitiated.