The chefs at El Diablo use heat generated by an active volcano to cook the food.

This beautifully verdant lagoon is tucked below a massive volcano in a crater atop a black pebble beach.

Partially collapsed lava tube and cave system complete with concert hall, underground pond, and unique albino crabs.

The oldest-known example of a historic architectural style recognized by UNESCO.

Legend says these colorful, invasive residents are the descendants of birds released by Jimi Hendrix.

The Tudor-style cottage in the middle of the square is not quite what it seems.

An architectural oddity hides in plain sight on this iconic London bridge.

Metro station with a claim to rock n' roll fame.

A monument to the three wars that led to German unification towers within a Berlin traffic circle.

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

Cold war icon and onetime "hole" in the iron curtain.

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.

For one day every month Barcelona's Estació de França transforms into a market for model trains.

The unexpectedly beloved remnants of a controversial thermal power plant.

150 or so scrounged-up lamps, chandeliers, and lanterns light up this alley in central Athens.

The railway carts travelers to central Athens's highest peak, which offers stunning vistas of the city.

Heralded as the world's first theater, these ruins are often overlooked as they reside in the shadows of the Acropolis.

The only surviving choragic monument is a trophy awarded in 334 BC for the winning dramatic chorus.

The oldest standing Byzantine church in Athens is tucked within a monastery in the middle of an upscale shopping district.

A man's head is enshrined beneath a statue near the first building constructed for the modern Olympic Games.

A stunning medieval castle houses this eclectic, interactive tribute to all things wine.

Famous landmarks and structures from across Italy fill this miniature park.

Da Vinci's equestrian statue, 500 years in the making.