Baked in 1898 and still almost flawless, this floral masterpiece is considered the world's oldest complete wedding cake.

This unassuming cheese empire in rural Oregon churns out more than 150,000 pounds of cheese each day.

The eerie remnants of an ancient forest were hidden under the sand for centuries.

Where hikers on the Tecumseh Trail can exchange a dirty sock for a free geode.

This open air cathedral invites all faiths to worship under the only roof big enough to fit them all: the sky.

Ruined pieces of stone and a swimming pool are all that remain of an amusement park swept away by a flood.

An early 20th-century bullring converted into a modern shopping center.

A vista of the city and sea from atop the little-known viewing deck on an unassuming Columbus statue.

The largest Art Nouveau complex in the world is a Barcelona hospital with a 600-year-long history.

Gaze upon chocolate sculptures depicting everything from chariot races to Gaudí's famous church at this shrine to sweets.

A beautiful but toxic fountain of mercury.

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

A section of destroyed vertical lift bridge stands alone in the Peene river.

World's only telecommunication tower with a wooden pinnacle.

A distinctive former power plant turned university lecture hall looks like it could make you breakfast.

One of the world's oldest fossil exhibits is on display in a beautiful antique "naturalienkabinett."

The first recognized Neanderthal remains were found in this now-lost cave in 1856.

The 1852 novel "Uncle Tom's Cabin" lends its name to a subway station, a street, and several shops on the edge of Berlin.

The remains of three Luftwaffe launch pads designed for manned anti-aircraft missiles.

This beautiful 19th-century temple stands atop the ruins of its predecessor.

The last remnants of a massive medieval wall that once encompassed the city of Berlin.

Tiny castle in the middle of the Rhine made you pay to pass.