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.

Dine amidst exotic plants at this former royal greenhouse.

A tropical paradise just a short trip from the opera house is filled with beautiful winged creatures.

This bridge's unique architecture honors nautical heritage and encourages self-awareness.

Visitors are treated to a stained glass kaleidoscope interior inside this work of art.

A collection of noses tucked inside an art museum reveals how times have changed.

The old observatory in Copenhagen has a spiral corridor used as a racetrack.

Climb to the top of its spiral spire for spectacular views of Copenhagen.

A little-known cafe in an old copper bridge tower with 360-degree views of the harbor.

Opulence and fantasy collide in this royal chair which is supposedly made with unicorn horns.

The de facto symbol of Copenhagen is this bronze fairytale which cannot seem to keep its head for very long.

This sublime architectural marvel is a rare example of an expressionist church.

An ultra-modern diversity park in Denmark has turned an entire city block electric pink.

This small condiment museum makes all manner of mustards with a 200-year-old mill.

The largest bell in the world has been swinging high above a Cologne cathedral for almost a century.

A church filled with the bones of hundreds of virgins martyrs—or so they say.

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

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

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

Some call this eerie forest of crooked trees the "Bermuda Triangle of Romania."

This Italian pyramid is said to hold the mingled remains of the dead from both sides of the Battle of Novara.

An unsettling painting of three faceless sisters that is surrounded by history and legend.

This half-finished "city of toys" was almost Italy's own Las Vegas.