Art Deco and “Wrenaissance” mash-up, this recently restored royal residence has been home to kings and comes with secret monkey passages included.

Lovers proclaim their unbreakable bond by leaving their names on locks fastened onto the Shoreditch fence in East London.

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

The cedar tree in Highgate Cemetery earned its title by accident.

A musical composition 1000 years in length plays at the Trinity Buoy Wharf in London.

The Columbia Road Flower Market is now open every Sunday, rain or shine.

Traveling collection of amazing automata.

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

A closed London rail station created to cart away the dead still bears the marks of attempts to make it less morbid.

The final resting place to 300 Victorian-era pets hides inside the city park.

The world's first underground farm is in a World War II bomb shelter beneath the streets of London.

Hear the quietest sound from across the dome.

The quaint little store that is said to have inspired a famous Dickens novel was only given its name after the book was released.

A vast overgrown cemetery, once known as one of London's "Magnificent Seven."

Wedged between two buildings at the Great Ormond Street Hospital is this secret music installation.

The only university zoological museum in London houses extinct animals, bizarre natural history specimens, and a Micrarium of microscopic creatures.

Winding paths and ramshackle mausoleums in the oldest "park cemetery" in London.

The popularity of Sherlock Holmes led to the creation of his fictional address, turning the orderly London street numbers askew.

The world's spiciest ice cream comes from Glasgow.

Anonymously sculpted and donated, these sculptures made from poetry books and pages are sprinkled around the city.

This Arcadian garden in the Pentland Hills boasts over 270 artworks by Scottish artist and poet, Ian Hamilton Finlay.

These ancient sea caves hold Britain's highest concentration of Pictish rock carvings.

Hidden on a cobblestone street in Glasgow, a Czech Cajovna-inspired teahouse serves as a hangout for Bohemians.

This Birnam-based garden honors the legacy of 19th-century children’s book author Beatrix Potter.