The beautiful, ornate weather station is the most popular geocache in Salzburg.

There is a strange little carving of a person seemingly crushed by a pillar behind the remains of St. Thomas Aquinas.

A medieval church with largest and oldest collection of Renaissance frescoes in France.

This anatomical sculpture raises awareness about violence against women and promotes gender equality.

The water-powered carriages are long gone, but for over a century this funicular railway has been the fastest route to the highest point in Paris.

Original cabaret handbills, posters, and feline artwork are a purrfect highlight of the Museum of Montmartre.

This bridge was constructed from the rubble of the infamous Bastille.

Home to three historic ships from the age of Vikings.

The famous winding walk at Chartres is surrounded in mystery and myth.

The Guinness Record holder for largest hedge in the world is a verdant Scottish bulwark.

Largest lake in Great Britain measured by surface area.

Famously misunderstood wonder of the ancient world

The oldest working mechanical clock in the world.

J.R.R Tolkien, C.S. Lewis, and other "Inklings" met at the Oxford pub to discuss the now legendary fantasy stories they were writing.

One of Europe's oldest libraries.

This trio of neolithic stone monuments are fabled to be a king and his knights that were petrified by a witch.

This small city where almost everyone lives in the same building can only be reached via North America's longest tunnel.

Running under an entire mountain, the longest highway tunnel in North America is kept fresh using portal fans and jet fans.

Concrete strongholds stand guard over the Golden Gate.

The century-old bell and clock tower at UC Berkeley is the third-tallest in the world, and has fossils.

The Vermont grave of a 4,000-year-old mummy prince.

A precariously balanced rock perches on the edge of a cliff created tens of thousands of years ago by glacial erosion.

Rock face that shares a name with Mary Shelley's famous doctor.

A Harvard-area eatery preserves the uncovered tiles of its century-old predecessor.