This giant wooden treehouse within a sprawling garden has its own eatery.

These sculptures of various animals adorn the building that houses one of the capital's least known museums.

This 16th-century house tells the city's history through old artifacts and quirky tales.

The taxidermy remains of the first mammal ever cloned from an adult cell are on display in Edinburgh.

The handiwork of a underdog clockmaker who solved an impossible problem for an Empire, and forever revolutionized seafaring.

This educational institution and reference library specialize in the psychic arts and mediumship.

A fully functional, 200-year-old remnant of the time when Brixton was mostly fields.

London's first edible insect farm offers facility tours and cooking classes.

The Art Deco artwork depicts gilded carriers of deadly illnesses.

This historic building displays the remains of a victim of the devastating 14th-century plague.

A wonderfully eclectic Victorian aquarium lies in the basement of the Horniman Museum.

Six ravens are kept captive (but well-fed) at the Tower of London to prevent the fall of the Crown.

One of the world's largest collections of pathological specimens.

The anatomical-pathological collection of a man who changed surgery.

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 geothermal paradise with bubbling mud pools and bright blue hot springs.

A vintage video game wonderland in downtown Reykjavik.

This natural Icelandic fissure allows divers to swim right between two volatile tectonic plates.

The largest whale museum in Europe allows visitors to walk among life-size giants.

The Icelandic Sea Monster Museum explores the area's history of aquatic cryptid sightings.

Every summer local children form "pysja patrols" to save young birds that have wandered from their nests.

One of the tallest buildings in Iceland, and perhaps, the most visually impressive.

Staves, storm-calling, and of course, necropants.

The unexpected mascot of Shetland's capital.