This stunning French estate was so lavish that it landed its original owner in jail for the rest of his life.

The last bastion of Roman presence north of the Alps looms over a German town.

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

The "Prussian Versailles" that is as glorious today as when it was built.

Daily jousts and dancing barrel makers in Munich's mechanical clock.

This medieval castle overlooking the Elzbach river looks just like it did hundreds of years ago.

On the Spree bank, discover one of the last reminders of a symbolic wall that divided, and was torn down by the people.

Stroll through a wonderland of stupendous moss-covered trees.

A giant Troll lurks under one of Seattle's oldest bridges.

Famously misunderstood wonder of the ancient world

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

A walk through the historic city center, under the streets of Seattle.

The fairy tale castle of the "fairy-tale king."

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

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

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