A graceful natural rock formation stands astride the point where the Gulf of California meets the Pacific Ocean.

Sacred waters rescued from the wrath of a volcano.

This crumbling medieval basilica once attracted pilgrims by the thousands to collect a miraculous dust that formed above the saint's tomb.

Seven early Christians were sealed into a cave where legend has it they slept unharmed for centuries.

Ancient serpentine sacrifice holder that has stood the test of time.

A charming beach town in Turkey captures all the colors of the rainbow.

The alleged house of the Virgin Mary is tucked away in a park and nature preserve on Mt. Koressos in Turkey and is holy to both Catholics and Muslims alike.

This remarkably well-preserved Egyptian plinth is pretty well traveled for a giant piece of stone.

A Turkish ghost town abandoned in a population exchange with Greece.

These tombs were built into the side of a mountain so that ancient angels could reach the dead.

A marvel of Byzantine engineering under the streets of Istanbul.

Spanish architects used seized Muslim gravestones to rebuild parts of the fortress.

A display of torture devices used in the Spanish Inquisition and other scourges of medieval Europe.

Numerous sculptures set along hiking trails symbolize and idealize the relationship between man and nature.

Giant eggs, walls of bread, and nightmare surreality mark the largest collection of works by Salvador Dalí.

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

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

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

An ancient and majestic fortress that played an integral role in Portugal's road to independence.

This unreal Portuguese palace looks as though it's made from a pile of different castles.

What looks like a link in Gondor's early warning system is actually a centuries-old Italian fortress.

Two stone columns flank the grand Venice square, but there were supposed to be three.

These medieval skyscrapers dominate the skyline of this small Tuscan town.

Ancient snack bar of the Roman Empire re-opened.