Places KatjaSm Wants to Go

A pilgrimage site where people ask Saint Dymphna to watch over those who are not of sound mind.

This bike path traverses the treetops.

This bike path was sunk below water level for maximum wonder.

No shoes allowed on this trail, which is designed to be experienced barefoot.

This collection of solar timekeepers includes the world's first digital sundial.

An unsettling sculpture of a boy hanging out in a street in Ghent has been baffling visitors for years.

Each time a baby is born in Ghent, these streetlights flash in silent celebration.

This narrow Ghent alleyway is an officially sanctioned street art tunnel.

This fairytale castle was built as a show of power but was nearly torn down thanks to its history of torture.

A little sculpture with a large wardrobe.

From Tintin to the Smurfs, Europe's greatest graphic icons are celebrated in a grand Art Noveau gallery.

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

One of Hollywood's most iconic actresses was born in an upscale Brussels neighborhood in 1929.

A wonderfully kitsch bookstore the size of a supermarket.

The birthplace of Karl Marx is now a museum dedicated to the communist revolutionary's life and work.

This tri-part waterfall is a little bit of fairytale beauty in the heart of Luxembourg's Little Switzerland.

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

A Belgian self-built tower inspired by the Bible and ancient civilizations.

Part modern art project, part traditional chapel, this see-through church is only substantial from the right angle.

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

Above the door of a house, a plaque claims to commemorate the future living place of the inventor of time travel.

An installation that makes understanding the size of the universe a walk in the park.

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

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