An unassuming London park is actually a pilgrimage site for modern clowns.

The oldest house in Glasgow is now a museum dedicated to the city's medieval history.

England's most famous front door has an accidental doppelganger.

Vast fan-shaped British cemetery honouring American servicemen lost in World War II.

Nestled among the living residents is the final resting place of an apothecary plague victim.

This London marker celebrates the spot where the world-famous English band was founded.

A faded reminder of what was once a common sight in London during the Blitz.

This charming old building's loose connection with the Scottish Reformer is what saved it from demolition after it split apart.

This stately bank building hides a spectacular star-studded ceiling.

This 16th-century close preserves an unusual piece of Edinburgh's transportation history.

The 20th-century chapel’s intricate woodwork includes amazing details, most notably angels playing bagpipes.

A serene public space nestled within the remains of Glasgow’s Victorian maternity hospital

This pub was 238 years old when it decided to revamp its image: It started serving Thai food.

Enter this small nook and you'll be surrounded by 360 degrees of street art.

Children's hospital in London that operates on royalties received from Peter Pan, which J.M. Barrie signed over in 1929.

An unusual ode to the late Irish playwright, complete with a squiggly bust and coffin-shaped bench.

Buried for centuries, this hidden cellar is all that remains of London's medieval Whitefriars Monastery.

This tunnel entrance is built to resemble a grand castle but no one is quite sure why.

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

The commemorative stone column conceals a secret laboratory.

This abandoned viewing platform has become a monument to unnecessary government spending.

For decades, Puerta del Sol has been illuminated by a giant, guitar-wielding bottle of sherry.

Saint Joseph was said to heal the deaf and blind, but it was a much smaller miracle that got him canonized.

Living towers made of people that are now recognized by UNESCO.