Romania's triumphal arch looks out over Bucharest.

This communist behemoth is the heaviest building in the world and a legacy of a brutal regime.

A fire once nearly devoured this gorgeous 14th-century Gothic cathedral.

This snug medieval lane is one of the narrowest streets in the world.

The bust of Romania’s most notorious ruler, Vlad Dracula aka "Vlad the Impaler," keeps watch over the ruins of his medieval court.

This once-derelict building is now one of the most beautiful bookstores in the world.

The possible imprisonment of Vlad the Impaler here earned the medieval castle its nickname, "Dracula's Castle."

This solitary monastery may hold the remains of Vlad the Impaler (but probably not).

A merchant court dedicated to the fictitious King Arthur is heavily adorned with bizarre Renaissance art.

This antique thermometer honors the creator of the first universal temperature scale.

A mysterious emblem tucked in an small alleyway is actually the coat of arms of a heroic medieval family.

A memorial to the beloved brown bear that served in the Polish army during World War II.

Memorial to the lost dead of Gdansk, whose resting places were destroyed during World War II.

A floundering Polish shipyard was once the soul of the Solidarity movement that capsized communism.

A huge wooden clock that is so beautiful its creator was forcibly blinded.

St. Mary's features one of the most spectacularly decorated cathedral interiors in all of Europe.

This 700-year-old structure is one of the most unique architectural and historic monuments in Gdańsk.

The site of the first battle of World War II.

Real bones which are said to have belonged to a Polish dragon.

The former Nazi concentration camp stands as a museum to remember this dark chapter in European history.

In downtown Oslo, a menacing and terrifying relief clings to a church wall.

Thousands of miniature bronze sculptures have taken over this city square creating a unique art installation.

The Brutalist building harbors an unusual inverted dome that swoops down over its central sacred room.

The painter of "The Scream" is laid to rest under a stoic bust of himself in the humble corner of an Oslo cemetery.