Latvia's symbolic mountain-shaped national library is home to millions of cultural tomes.

A black cat protests the City Guild in Riga's Old Town.

Flamboyant architecture from the turn of 20th century.

The oldest housing complex in Riga is a mini timeline of architectural trends.

3,000 market stands in five former Zeppelin hangars.

This once private residence is now a popular wedding venue and training center for trade union officers.

A medieval cave used to shelter local hermits now holds nearly 200 old Quaker gravestones.

A miniature replica of the canine that became the logo for a large recording company.

England's steepest street has such a drastic incline that locals tie their parked cars to lampposts when it gets icy.

The sign at the garden gate reads: "These Plants Can Kill."

This ordinary street was made infamous by a legendary visit from the devil.

This statue and park honor the Swedish chemist Jacob Berzelius, one of the founders of modern chemistry.

A golden plaque marks the site of the mysterious unsolved assassination of the former Swedish prime minister.

This giant subway sculpture celebrates the fruit that inspired the theory of gravity.

A Japanese video game arcade hides in the back of a Swedish pool hall.

This park built on a former fortress has a reputation for romance.

This bare, bronze lad in a lone sock sits in the middle of Loughborough’s town center.

The lasting remains of the Balloon Section of the British Armed Forces.

This is Britain's one and only clock concealed in the pavement.

A bronze statue of the fictional character nicknamed "Mrs. Hat" from a beloved Belgian comedy.

The final resting place of a miniature monkey.

The European equivalent of the Hollywood Walk of Fame is slowly spreading over the entire city.

These lights mark the area of Rotterdam that was bombed and burned in 1940.

From afar it looks like someone's hat blew into the water, but closer inspection reveals a giant floating sculpture.