This "preacher's pulpit" once used for pagan ritual, is home to a new, and dangerous ritual.

This giant boulder is pinched over a 1000-meter abyss by two mountains.

This community on a small Venetian island has taken to painting their houses in bright neon hues.

One of the most well-preserved castles in Italy also contains a rare medieval example of a port fortification.

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

A king's pet, a pope's gift, an artist's inspiration, and a tragic shipwreck.

Portugal’s highest lighthouse has one of the most impressive focal planes in the world.

A rooftop restaurant hides in plain sight atop Vienna's Palace of Justice.

The majority of the highest mountain in Poland is actually located in a different country.

The ruins of a 13th-century monastery that long served as a place of refuge from wars and raids.

After 11 years of reconstruction work, Slovakia's finest hilltop chapel complex is finally reopen to the public.

A massive sculpture of an obscure Celtic coin that has become a symbol in Slovakia.

Estonia's largest creative city is a vibrant bohemian hub located within a former industrial complex.

Perhaps the most spectacular grotto along the Algarve coastline.

A hidden three-foot-wide house separates these two regal churches.

One of the most beautiful bookstores in the world hides a neo-Gothic interior behind an art nouveau facade.

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

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

Mountain where Jesus was first tempted by the Devil.

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

Construction of Barcelona’s iconic (but controversial) church was finally completed in 2026—a century after the death of its architect.

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

Twelve grave-faced marble angels guard the emperor's tomb at Les Invalides.

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.