Places Mark0 Wants to Go

The ruins of this gorgeous clifftop castle look like something from a fantasy novel.

The elaborate clockwork contraptions in this Scottish gallery create small worlds of whimsy and horror.

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

A mysterious artist-run cabinet of curiosities and library.

Hidden in a grotto 26 feet below Nottingham's oldest hotel, this stylish subterranean drinking den is notoriously hard to find.

A network of concealed passageways lies within a busy London Underground station.

A 18th century graveyard and its astonishing cortege of macabre iconography.

These tiny effigies are believed to represent victims of Edinburgh’s notorious Anatomy Murders.

A cluttered and astounding collection of antiquities and curiosities.

This wildly-tiled artist's palace is a living and growing account of the creator's life, loves, and labors.

An incarceration museum on the spot of possibly the oldest prison in England.

This series of Scottish caves has no clear purpose other than baffling historians.

A strange rock with a sinister reputation lurks within the crimson waters of this Scottish glen.

The world's largest collection of witchcraft regalia.

A student driver's nightmare.

One part local history, 99 parts gruesome haunted house.

Several plaster noses are hidden in plain sight around London's Soho neighborhood.

A subterranean ice warehouse that has lain hidden beneath central London for over a century is now open to the public.

The most iconic structure in Scotland has been home to bishops, colonels, and Sean Connery characters.

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

The fountain marks the area where hundreds of accused witches were burned at the stake.

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

One of Bristol's best-hidden gems has ties to Lord Byron, whence it became the nation's first reformatory school for girls.

The site of the most dived wreck in the UK.