Places Mark0 Wants to Go

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

A 200-year-old collection of oddities and medical paraphernalia.

The first geometric self-supporting spiral stairs in Britain are a truly beautiful sight.

These official units of measurement—including chains and perches—lie hidden beneath tourists' feet in a popular London hub.

Traveling collection of amazing automata.

Sprawled across the Great Hall ceiling are various constellations and images relating to the zodiac.

This luxury shopping lane has been protected by its own tiny police force for over a century.

Museum about life, death, and cannibalism in the Stone Age.

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

It is said the legendary wizard once lived in this sea cave beneath Tintagel Castle.

A familiar otherworldly creature guards this 12th-century Scottish abbey.

This waterfall is one of the most spectacular natural features in the Scottish Lowlands.

The largest cave chamber in Britain—big enough to fit a whole cathedral inside.

An American ghost town hides along a side street in Scotland's capital.

The heads of two giant mythological water horses honor Scotland's horselord past.

This iconic 1,000-year-old medieval castle is a favorite of the film industry, most notably as the location for Hogwarts in Harry Potter.

A labyrinthine network of chambers with a storied past hides below Edinburgh's South Bridge.

This home on a quiet suburban street is completely covered with vibrant mosaics.

The largest greenhouse in the world is home to over one million types of plants.

This obscure walkway links Edinburgh’s Old Town with one of the city's prime vantage points.

There are plenty of wonderful panoramic vistas in Edinburgh, but not many are hidden smack in the middle of the Old Town.

A collection dedicated to the treatment of disease, held in London's oldest hospital.

A fantastic castle rumored to be the birthplace of King Arthur.

Artists and musicians now rule over this former rail station.