Hollywood's most famous landmark, the "temporary" sign that has stood for decades longer than intended.

The only castle in North America to ever house European sovereigns.

A disquieting Aztec sculpture displays hundreds of stone skulls representing the victims of human sacrifice.

This half-ton piece of the Alps sits at the base of the CN Tower.

The unique collection often goes unnoticed by visitors focused only on the archaeological objects.

Frida Kahlo's childhood home, now a museum of her life and works.

Local lore claims this rocky cape hides a lost Aztec treasure.

Royals, rebels, and artists have all conversed at this grand 19th-century Viennese coffee house.

This ferry carries passengers across the Rhine propelled by no engine or paddles but by the river's current.

The most impressive of Basel's three remaining city gates.

This artistic fountain display pays homage to this area's theatrical history.

The statue of John Harvard isn't actually John Harvard—or even, technically, the founder of the school.

The bones of the Biblical Magi traveled to Constantinople and Milan before landing in their current home inside an elaborate golden reliquary in the Cologne Cathedral.

A tilted half-timbered house from 1672 is built into a salvaged segment of a medieval wall.

Sitting in the basement of a castle, the largest wine barrel in the world is bigger than most apartments.

From Ancient Rome to WWII, Neupfarrplatz has over 2,000 years of history underneath its main square.

This abandoned coliseum was intended to be a grand Nazi rallying ground before it was halted at the end of the war.

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

The prototype for all Nazi concentration camps.

This massive statue is the personification of Bavaria and the first colossal statue of the modern period composed of bronze.

These prehistoric replicas were based on actual skeletal remains.

A century after his death, this covered bridge still calls to mind the plein air painter who loved it.

The first bridge observation tower in the U.S. offers one of the best views of Maine.

This 19th century granite fortification is one of the most well preserved forts in New England.