Northern Ireland's Brobdingnagian stepping stones.

A tongue-in-cheek arcade where the games are based on everyday life.

360° views of the city plus five floors of optical illusions and hands-on science.

A 30-acre garden inspired by the principles of modern physics.

The perfectly preserved underground rooms where Churchill plotted the war against Germany.

The world's largest collection of witchcraft regalia.

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

This South London cemetery holds the remains of more than 15,000 people.

This collection of illusory paraphernalia has been culled from the history of London's premier magician's club.

Hidden beneath the streets of London is a secret subway that only carried mail.

The sign at the garden gate reads: "These Plants Can Kill."

This churchyard arbor is surrounded by hundreds of gravestones placed there by author Thomas Hardy.

This shop and gallery is a modern-day cabinet of curiosities, unassumingly positioned along an urban thoroughfare.

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

A kaleidoscopic warehouse-maze of handmade neon signs.

London's creepiest cemetery was once the site of dueling magicians and mobs of stake-carrying vampire hunters.

A marine aquarium with an astounding variety of fish hides in the basement beneath the famous Palm House.

The mouldering remains of a disgraced British children's icon are hidden in the brush of a public park.

A museum devoted to the science of color.

Despite its ornamental looks, this towering Tuscan-inspired anomaly was a masterpiece in hydraulic engineering.

This lone tower casts an outstretched shadow over the site of a once-wealthy Knights Templar preceptory.

A museum pays tribute to the glass-making industry of Sunderland.

Explore Hull's historic Old Town by following the sea creatures scattered throughout its charmingly cobbled streets.

Journey through this open museum where even employees remain true to period.