Largest lake in Great Britain measured by surface area.

This hilarious English intersection is an automotive whirlpool.

The one-time stronghold of the noble Douglas family, now home to ghost sightings and nesting birds.

Ruined castle with subterranean vaulted Goblin Ha' or "Goblin Hall."

This Scottish manor house is a lush relic from the life of a literary great.

A church that bred legends, and served as an inspiration for the Da Vinci Code.

A statue in the heart of Edinburgh honors a bear that served in the Polish military during World War II.

This picturesque view of the Scottish Borders was beloved by Sir Walter Scott.

A well-studied colony of endangered bats roosts in this abandoned Victorian Gothic mansion.

The tomb of one of Scotland's bloody historic villains is a magnet for bumbling desecrators.

Remnants of the 16th-century defensive wall still stand unassumingly within Edinburgh.

A beautiful Greco-Roman structure houses a well once believed to have healing powers.

A mud statue stands in the dark tunnels, seeming to hold up the weight of the city above.

A 400-year-old church covered floor to ceiling in ex-voto offerings from the faithful.

The post-apocalyptic remnants of a bucolic town ruined by a plane crash.

This structure atop a craggy cliff in one of the most beautiful parks in Paris boasts an unbeatable view.

Beggars were miraculously "cured" of their fake ailments when they returned home to this 17th century Paris slum each night.

Noirish green neon marks the location of one of the oldest private detective agencies in France.

One of the last umbrella repair shops in Paris upholds the nostalgic art of umbrella making.

Twelve grave-faced marble angels guard the emperor's tomb at Les Invalides.

This charming cobbled backstreet is the most Instagramable street in Paris, much to the residents' annoyance.

Artistic tombs, monuments, and a beautiful "Hall of Fame" lurk inside this cemetery.

A long-buried ancient ruin unearthed right in the middle of the city.

This poignant art installation raises awareness of violence against women.