This tremendous timepiece was once the largest cuckoo clock in the world.

The final resting place of the famed German pilot, the "Red Baron."

The first (but not only) upside-down house in Germany.

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

When a medieval fire claimed the original St. Stephen’s Cathedral, it sparked a pattern of unquenchable organ building.

Germany's Glienicke Bridge has a shady history of clandestine meetings, espionage, and spycraft.

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

A small but immensely extravagant palace built by the "Night King."

A unique Holocaust memorial tells the personal stories of the Jewish residents exiled from greater Berlin.

The site of the famous Nazi book burning campaign of 1933 remembers its "Night of Shame".

This World War II bunker now survives as a documentation of the Nazi regime and war crimes.

This jaw-dropping 19th-century bridge uses its reflection to form what appears to be a perfect circle.

Tear apart fatty, gently charred lamb chops with your bare hands.

Since 1969, this restaurant has served up dishes typical of Istanbul's Greek diaspora.

Savor sheep milk yogurt at the last of Athens' dairy bars.

The nuns here cultivate silk to weave some of the finest scarves in the world.

This "volcanic all-day restaurant" is right on the beach.

One of the largest single-span stone-arch bridges in the Balkans looks like something straight out of a fairytale.

A 2,000-year-old computer demonstrates remarkable engineering and astronomical precision.

This ancient Greek place of assembly and marketplace is being revealed layer by layer below the modern Athens cityscape.

The railway carts travelers to central Athens's highest peak, which offers stunning vistas of the city.

Monasteries on rock pillars, once accessible only by frayed ropes.

A spectacular cave and a beguiling lake.

A relic of World War I that now exist as a piece of public art.