A coastal French town said to have been visited by Jesus' disciples is a major pilgrimage center for Catholic Romanis.

This ancient theater was once the home of fierce gladiatorial battles.

Hundreds of hidden passageways weave through the old quarters of Lyon.

This aluminum “stairway to heaven” has impaled at least a couple of birds.

Monsters and miniatures are held in equal esteem at this wondrous museum.

Those with a sharp eye can find the hidden image of a German Shepherd on the memorial's Mural Wall.

A cavernous three-story, 43,800-square-foot basement that was forgotten about for 60 years.

Tourists often confuse this beautifully ornate former cigarette factory for a mosque.

A moving and macabre World War I-era painting by the great artist Otto Dix.

This Dresden church was purposely rebuilt Protestant after being demolished in World War II.

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

Go surfing on this urban wave, "hacked" by local surfers.

In this German city center, the streets have no names.

A German apartment building hosting as many trees as human occupants.

This tin chapel was built by POW's during World War II and is painted to look like something much more grand.

Amazing and mysterious Neolithic settlement on Scotland's Orkney Islands.

The sign marks one of the endpoints to mainland Britain's longest overland travel route.

Three bridges and one giant canyon make up this fantastic Spanish settlement.

One of the most spectacular bridges in Spain spans a narrow chasm that divides the city of Ronda.

Spain's unique Mosque-Cathedral has been a place of worship for both Muslims and Christians throughout its history.

The final resting place of the great navigator, or maybe his brother.

A complimentary beverage is offered to the bodega's resident rodents every day.

Engineering ingenuity during the battle of Gibraltar.

The facade of this 16th-century building is decorated with carvings of 300 seashells.