A museum celebrating the self-taught artist-environment builder.

A unique botanical garden housed in three giant geodesic domes.

A metal ring in the middle of the road marks the exact spot where the Soviet satellite crash-landed in 1962.

Six tiny houses built for working class people form the largest intentional cluster of Wright homes anywhere.

World's largest Christmas store.

This museum in the woods evokes the work and lives of Michigan's 19-century lumberjacks.

This national park on the shore of Lake Michigan features remarkable dunes that lie at the heart of a Chippewa legend.

Started as a kitchen garden, now the second largest botanical garden in the world.

Tiny memorials honor individual victims of the Holocaust.

Known simply as "The Hand," this famous public sculpture in Berlin was featured in a Depeche Mode music video.

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

This massive underground salt mine now holds a sci-fi theme park in its depths.

A stunning 18th century pharmacy and medieval chemist's collection.

Something's watching you.

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

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

A statue honors the children who fought Nazis in Poland.

A menacing statue of this mythical creature can be seen at the legendary site of the monster's lair.

These 18th-century paintings of Warsaw were used to reconstruct the city after World War II.

This elaborately decorated, fairytale-like Romanian royal palace is one of the most striking castles in Europe.

Romania's triumphal arch looks out over Bucharest.

This memorial to the victims of the Romanian Revolution of 1989 is often compared to a potato on a skewer.

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