In Twickenham sits a small whitewashed castle that inspired Mary Shelley's 'Frankenstein.'

Hundreds of years ago, this lion-shaped door knocker could help a person accused of a crime find temporary safe haven in Durham Cathedral.

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

For part of the year, this innovative greenhouse is painted white to keep the plants from getting scorched.

These engineering masterpieces are a dominant feature of the Belfast skyline.

The ship built to ferry passengers and goods to the doomed Titanic is now the last remaining White Star Line vessel.

The comedy and tragedy of Oscar Wilde is preserved in a Dublin park, captured in a sculpture of colorful stone.

A two-storey cabinet of wonders filled with the bizarre, the macabre, and the downright uncanny.

A particularly disconcerting tribute to Irish martyrs.

One of Ireland's most infamous prisons for rebels including men, women and children.

An Irish church where an 800-year-old mummy is reaching out of his coffin as if to shake hands.

A cluttered and astounding collection of antiquities and curiosities.

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

The curios of pharmacist and collector Henry Wellcome.

Where the dead once lay, art now plays.

This sculpture encompasses the emotion of rail travel.

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

As seen in the Spice Girls ‘Wannabe’ music video.

This whimsical Oz-themed park had a wonderful impact on the surrounding neighborhood.

G.V. Black, the Father of Modern Dentistry, keeps an eternal eye on Chicagoan’s teeth from his perch in Lincoln Park.

A monument to the art of slicing people open.

Each of these gorgeous, intricately decorated rooms is painstakingly crafted to the scale of 1 inch: 1 foot.

A journey begins with a single step, and for many, the road-trip of a lifetime started at this Chicago intersection.

A gothic church spire sits atop this skyscraper, the tallest church in the world.