The initials "GW" mark where one of Scotland's most important Protestant martyrs was burned at the stake.

A monument to the 70s rock icon stands on the road into this small Scottish town.

A fairytale island floats in the middle of Italy's little-known Lake Orta.

This winding road through an Italian canyon may be the most scenic drive in the world.

After this historic church was destroyed by World War II bombing, its blackened shell was left standing as a monument.

This German monument honors the so-called "Prince of Mathematicians."

A purr-fectly spirited bronze celebration of local street felines through history.

A re-purposed wooden sculpture, depicting one of Scotland's most beloved writer's amphibious creations.

An exceptional engineering feat that facilitates the migration of salmon upstream during their breeding season.

A cottage built at the birthplace of Alexander Selkirk, a sailor who inspired the novel 'Robinson Crusoe.'

An ossuary built in 1210 to collect bones from the Ospedale Maggiore of Milan.

This grisly effigy displays an early Christian martyr who was skinned alive and beheaded.

A warning against "the demon drink" adorns the northwest entrance of Glasgow Green.

Swarms of dainty flying insects swarm into the Petaloudes Valley to get busy.

This cafe offers a curated collection of treats and tipples made by monks and nuns.

Barça football fans might see the insignia hidden in a church window as a divine sign.

Saint Joseph was said to heal the deaf and blind, but it was a much smaller miracle that got him canonized.

Possibly the oldest church in Barcelona, this basilica has its pagan and Christian mythologies all mixed up.

This fountain was designed to honor the man who helped bring water to Barcelona.

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

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.

A temple to modernity, tucked away amid Barcelona's more well known museums.

A vista of the city and sea from atop the little-known viewing deck on an unassuming Columbus statue.

Scotland's only funicular railway is also the United Kingdom's highest.