The iconic boulevard is the perfect place to catch sight of a bicycling skeleton, a levitating Satan, or a chef with his head stuck in a pizza.

The 2,000-year-old Roman columns are hidden within Barcelona's Gothic Quarter.

A fantastic Christmas tradition where defecation meets the manger.

Catalonia Tradition: Beating the hollow Christmas log until it defecates in your fireplace.

This tiny alleyway is now a shrine to a subculture riot between the mods and rockers.

One fisherman has used his love of pebbles and shore to create a crazy garden of rocky art.

A vintage penny arcade hidden in the back of a fun fair-themed bar.

An art museum dedicated to the sculptor Barbara Hepworth, but it is by no means restricted to her work.

A Victorian-era British railway viaduct has been transformed into an elevated garden.

The largest of London's subterranean rivers and once a mad, bad center of London life.

London’s first road overpass is so old that it was originally built for horse-drawn carriages.

A miniature of a lighthouse acts as a beacon for what transpires inside this location.

The bell that once tolled atop a lost Edinburgh gate now hangs for all to see.

A rare memorial paying homage to an altruistic woman from the 19th-century.

Erected in memory of Sir Arthur Conan Doyle, who was born close to this spot, this statue commemorates the author and his famous detective.

Poetic, metallic giraffes adorn a square off an Edinburgh thoroughfare.

This sculpture of disembodied body parts forms a poignant memory of the horrors of World War II.

A stone monument acknowledging Scotland's right to have a separate Parliament from the one in Westminster.

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

This city square dates back to the Scottish Enlightenment and was home to some of Scotland's brightest minds.

A rare and unique example of an 18th-century door latch calls this restaurant home.

This cannonball embedded in the side of an Edinburgh house once served a surprisingly pedestrian purpose.

This Roman relic was discovered in Scotland by a mudlarking ferryman.

The colorful stairs are made with marble from the world's major quarries.