Of the many chalices in the running for the Holy Grail, this one in Valencia Cathedral sure looks the part.

This house's itty bitty size means no humans allowed.

This architectural oddity is an oasis of green on the outskirts of Valencia.

This massive fiberglass Gulliver turns every visitor into a Lilliputian.

Beautiful tiles decorate many of the town's surfaces and stand testimony to its glorious artistic history.

This awesome Spanish castle is so fantastical it was actually used on Game of Thrones.

12th-century holy complex shares land with a natural park full of heavenly waterfalls and raptors.

A site where “the ravages of the war are more striking…than any other place in contemporary Spain.”

The quirky - and private - constructions of a secluded artist depict the house of God.

Located within one of Israel's most picturesque monasteries is also the country's first meteorological research station.

This Roman statue is missing a limb from when the Venetians stole it from Constantinople during the Crusades.

Those who own or stay at this 500-year-old, allegedly cursed house often meet terrible fates.

The marble facade hides a little-known medical museum with early surgical instruments and rare copies of canonical texts.

The oldest of Venice's plague quarantine stations, designed to keep the medieval city safe from disease.

The small peaceful island off the Venice tourist circuit is where the city began more than 1,500 years ago.

A sinister pyramid in the Frari contains the heart of the famous neoclassical sculptor.

This palatial spiral staircase was so unusual the name "snail" was given to the noble family who built it.

Just outside of Jordan's capital lies an ancient castle and intriguing caves dating back to the Copper Age.

One man's labor of love, Amman's oldest home has become a time capsule with its doors permanently open to artists and guests.

An oasis of shade and color amidst the bustle of the old city.

Over 4,700 miles of trees being planted to hold back the desert.

This stunning, out-of-the-way Croatian monument commemorates a community's uprising against occupying fascist forces.

The decaying remains of a once-luxurious Soviet spa town.

The last standing example of an ancient district's teatime tradition.