Amsterdam's Red Light District leaves little to the imagination.

This museum housed in a former brothel explores the past and present of sex work in Amsterdam.

Tucked in the back of a flower shop, its collection details the fascinating history of the Netherlands's iconic symbol.

This museum inside Amsterdam's largest cemetery explores how people deal with death.

This basement museum explores the art and artistry of fascism.

The largest collection of handbags in the world, the oldest of which were used to carry Bibles, primarily by men.

Seven mini rowhouses fill the gap between 54 and 70 Westerstraat.

This 22-floor tower's Skydeck offers panoramic views of Amsterdam.

The world's first zoo for microbes collecting the horrible and wonderful things living on and around us.

A curious collection dedicated to human and animal anatomy and pathology.

Museum preserving torture methods from the past.

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

The world's only museum devoted to the wonders of fluorescence.

This poignant art installation raises awareness of violence against women.

Nestled in the heart of Milan is a real wunderkammer of morbid curiosities.

Vast network of air raid tunnels beneath Lombardy's capital.

An ossuary built in 1210 to collect bones from the Ospedale Maggiore of Milan.

One of the best collections of wax anatomical models in the world.

The housing complex served as an anti-fascist fortress during the Austrian Civil War.

A rooftop restaurant hides in plain sight atop Vienna's Palace of Justice.

This museum promotes informed contraception by documenting its often secret past.

This Austrian museum celebrates the work of famous forgers and their inimitable imitations.

The former private quarters and office of Dr. Sigmund Freud now hosts a museum housing the works of the founding father of psychoanalysis.

The topiary maze at the Habsburg hunting lodge.