Ruined 11th century abbey built by King David I in Edinburgh, Scotland.

A perfectly circular lake is formed by the crater of an ancient underwater volcano.

In a city that boasts four separate inclined cable railways, this is one of the busiest funicular lines in the world.

A sculpture serving as an homage to Pope John Paul II.

The yawning maw of this pagan visage is said to bite off the hands of liars.

Rome’s legendary peephole vista is also a former Crusader stronghold.

Hundreds of lucky felines haunt the ruins where Caesar was murdered.

A trail of iron footwear stands as a monument to the thousands executed along this riverbank during WWII.

An exquisite Baroque church in Vienna's old town.

Vienna's giant wonder wheel had a starring role in one of the greatest noir movies of all time.

Baroque celebration of the end of the Great Plague of Vienna.

The art museum is decorated with creatively remodeled pre-Nazi swastikas.

The old observatory in Copenhagen has a spiral corridor used as a racetrack.

Danish tourist destination well known for open stalls where vendors sell marijuana on the street.

The de facto symbol of Copenhagen is this bronze fairytale which cannot seem to keep its head for very long.

Copenhagen's celebrated theme park and gardens.

This 15th century pharmacy displays a beautiful collection of ancient medicine jars.