The castle where Martin Luther secretly translated the New Testament from Greek to German while in hiding.

The largest brick bridge in the world.

The largest treasure hoard in Europe is contained in a castle that was bombed out during World War II.

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

A strange rock formation with numerous legends trying to explain it.

The medieval institution is home to the precious treasure stolen in World War II in one of the greatest art thefts of the 20th century.

The ruins of an abandoned crematorium haunt an eerie deserted German cemetery.

Ruins of a German Castle on top of a towering stone pillar.

Wax models of disease and deformity are on display at this German medical museum.

A two-inch thick solid brass rod that extends an astounding one kilometer straight into the earth.

Now famous as the "Harry Potter bridge," this impressive concrete viaduct has long been an icon in its own right.

A giant pineapple, a symbol of hospitality, and an amazing vacation rental option.

Largest lake in Great Britain measured by surface area.

Old-fashioned knowledge and modern engineering create the world's only rotating boatlift.

The heads of two giant mythological water horses honor Scotland's horselord past.

The highest peak in the United Kingdom has a history of physics, specters, and a pilgrimage of strange objects.

A 18th century graveyard and its astonishing cortege of macabre iconography.

17th century streets hidden under Edinburgh were once a breeding ground for the black death.

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.

Portugal’s highest lighthouse has one of the most impressive focal planes in the world.

"Portugal's Stonehenge" is made up of nut-like stones aligned with the heavens.

Elaborately carved to showcase the glorious wealth that the age of exploration brought to the Portuguese empire.

This Industrial Age architectural and engineering gem helps visitors and residents alike traverse Lisbon, “The City of Seven Hills.”