Of all the houses that grace this neighborhood, only one is a testament to surreal architecture.

An army of sleeping knights sculpted by a self-taught local artist beautifully depict an old Czech legend.

Tall columns of volcanic basalt make up this improbable-seeming rock formation.

This museum offers a glimpse into early 20th-century Glasgow life.

The location of the Bridge of Death and the Gorge of Eternal Peril in "Monty Python and the Holy Grail."

This small cemetery and its chapel are located in the middle of a traffic circle.

One of Antoni Gaudí’s earliest buildings, built between 1886 and 1890 for the industrialist Eusebi Güell.

This stunning iron gate designed by Modernist architect Antoni Gaudí is filled with mythic symbolism.

The hidden ruins of an old hydroelectric plant reclaimed by nature.

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

A 16th-century Andalusian palace.

Ever hear of the Milazzo Cage?

This hermitage celebrates the legend of Emperor Constantine's healing from leprosy.

This small church was constructed over the ruins of three temples dating to the Roman Republic.

A small cell adjacent to this church was once the bedroom for a renowned saint.

Legend has it that this bronze orb, which sat atop an ancient Egyptian obelisk, once held the ashes of Julius Caesar.

A colossal aqueduct from the second century B.C., deeply hidden in a gorge on the outskirts of Rome.

An ancient Roman temple first dedicated to an emperor's wife is now a church.

Known for centuries as the famous Roman emperor's burial place, this monument is actually something else.

A monumental fountain in Rome features a large statue of Moses that has been criticized for centuries.

This basilica is dedicated to two saints, one of which is known more for his famous quote.

This ancient Roman arch misled treasure hunters for centuries.

An abandoned 17th-century baroque hunting lodge with a wonderfully strange architectural plan.

This one-of-a-kind Roman arch is not actually dedicated to the god Janus.