The ruins of an ancient mansion sits in front of and underneath a contemporary art gallery.

Learn about the sweet, storied legacy of beekeeping in ancient Greece.

Luminaries of all stripes have sipped strong Greek coffee at this cafe since 1839.

This gem is often wrongly overshadowed by the larger, newer Metropolis church in Athens.

Replicas of Apollo's leonine stone guard cats still line a sacred row in Greece.

This small 16th-century church in Athens is almost entirely surrounded by a modern building.

The ruins of an ancient Roman tomb hidden in the basement of a trendy clothing store.

The hallucinogenic center of the ancient world.

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

This Stone Age solar temple aligns with the sun on each equinox and solstice.

Both the World War II Allied Forces and NATO have used this modern bunker underneath Malta’s capital.

The eyes and ears of this tower keep watch over Malta’s Grand Harbor.

A World War II-era sign in Valletta is a reminder of when Malta was besieged so severely that food needed to be rationed.

Valletta’s outdoor theatre stands within the ruins of a 19th-century opera house.

The world's most active stratovolcano is almost always erupting.

Built on a medieval synagogue, this church has a burial crypt, tunnel system, and Jewish ritual bath hiding deep underneath.

According to Greek mythology, this natural spring is the home of a freshwater nymph.

A swath of France so devastated by war it is still forbidden to go there.

Italian cave with exceptional acoustics and an unsavory history.

Built in the aftermath of a devastating earthquake, this cathedral is one of the finest examples of Sicilian Baroque architecture.

"Stairs of the Turks", a chalky white cliff eroded conveniently into stairs, allowing for easy pillaging.

This amazingly preserved Doric temple was abandoned before it was ever completed.

Thousands of well-dressed mummies below a monastery.

This triumphal 16th-century arched gateway leads to the oldest street in Palermo.