This gem from the industrial age helps visitors and residents alike traverse hilly Stockholm.

Sweden's oldest animated sign is still lighting up the skyline today.

It houses the remains of a 17th-century version of the Titanic.

This statue of a studious young woman stands at the site of Leuven's first college to accept female students.

A small statue commemorates a centuries-old event that still hangs over the people of Leuven.

A tiny metropolis resides inside this student housing complex.

Banished from town, this local jester concocted a clever return.

A whimsical bridge uses saxophones to pay tribute to two great men and the European Union.

What was once a bustling mining installation is now a bustling hub of contemporary art.

A giant bug impaled on a 75-foot-tall needle.

A collection of weird and wonderful art fills a former houseplant nursery.

The Belgian library displays burned books that were salvaged from the fires of both world wars.

This whimsical statue dumps water on its head to symbolize knowledge flowing into his brain. Or maybe booze.

This giant urban staircase was built to keep the city's brave fighting men from getting waylaid in the red light district.

A once-magnificent collegiate church is falling into ruin.

The "stairway to heaven" lookout tower was built to resist weather, arson, and the laws of physics.

A marble Lucifer hides behind the pulpit of this Gothic cathedral.

A little sculpture with a large wardrobe.

A magical and peaceful ruined Cistercian abbey in what is now southern Belgium.

This collection of over 50 murals celebrates Brussels' rich history as the self-proclaimed home of the "comic strip."

Climb inside an iron crystal magnified 165 billion times its normal size.

Nature is slowly overtaking this disused cemetery on the outskirts of Brussels.