Stay overnight in the world's most sleekly designed rabbit hole, free of charge.

A favorite with sightseers, this Norwegian funicular provides easy access to a stunning view of Bergen and its environs.

St George's Leprosy Museum depicts the gruesome afflictions of those suffering from the disease.

An Amsterdam street lined with antique shops each one dedicated to a different obscure collection.

Though they've since been renamed, these two streets hint at Dublin's darker days.

The comedy and tragedy of Oscar Wilde is preserved in a Dublin park, captured in a sculpture of colorful stone.

The 19th-century pharmacy (now a used bookstore) was featured in James Joyce’s "Ulysses," and has changed very little to this day.

A statue in the center of Dublin dedicated to one of their favorite sons of rock & roll.

The somber sculptures commemorating Irish Famine on the river Liffey in Dublin.

The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.

A mysterious plaque to the even more mysterious "Fr. Pat Noise," killed in "suspicious circumstances."

The Devil’s own choice when he needs a drink in Brussels.

This former Masonic lodge has been transformed into part museum, part bar, all awesome.

Hiding the longest subterranean river known in the world.

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

This abandoned Belgian fortress is purposefully being left to nature.

The vast chamber inside this abandoned cooling tower looks like something out of a sci-fi dystopia.

This Belgian theme park began as a refuge for bored church children and was closed down when a boy lost an arm.