The celebrated eyesore created by starry-eyed sweethearts.

This demon atop the Notre-Dame de Paris looks utterly bored.

The water-powered carriages are long gone, but for over a century this funicular railway has been the fastest route to the highest point in Paris.

This surreal statue brings a famous French novel about a supernatural cad to arresting life.

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

Paris' linguistic guide to the international language of, yes, love.

France's most famous cemetery, with some of its most curious tombs.

Ruins of a German Castle on top of a towering stone pillar.

Cold war icon and onetime "hole" in the iron curtain.

Explore the complex ecology of this multifaceted nature preserve by riverboat.

A monument to the three wars that led to German unification towers within a Berlin traffic circle.

Berlin's old airport.

In addition to fine dairy products, the world's most beautiful milk shop also offers a feast for the eyes.

When the rain falls, this drain system turns into a musical instrument.

This Dresden church was purposely rebuilt Protestant after being demolished in World War II.

The "Prussian Versailles" that is as glorious today as when it was built.

An oversized, oddly designed pedestrian overpass has drawn comparisons to a commode for pachyderms.

A Nazi concentration camp and Anne Frank's place of death.

This proud Teutonic warrior rises out of a German forest heralding a victory and measuring lightning.

The real life town from the Pied Piper of Hamelin has a mechanical puppet show that retells the famous story many times a day.

This historic stone bridge has an entire neighborhood clinging to its sides.

The castle where Martin Luther secretly translated the New Testament from Greek to German while in hiding.

Buenos Aires' city of the dead contains some very famous remains, including Eva Perón.

A series of waterfalls so massive they straddle the border of Argentina and Brazil.