The largest market in Guyana, designed and built by the Edge Moor Iron Company of Delaware.

This underground church is topped with a 500-foot cross that is seen by many as a beacon of fascist hubris.

This influential Renaissance-era library was once the haunt of kings and monks.

A pair of gigantic baby heads greet passengers at Atocha Station.

A spectacular walk on the flank of a gorge.

Two towns are linked by an engineering marvel masquerading as a boring suspension bridge.

Giant topiary dog once played a role in a terrorist bomb plot.

Spain's unique Mosque-Cathedral has been a place of worship for both Muslims and Christians throughout its history.

This magnificent castle grew from a small Moorish fortress, and reportedly inspired two iconic Disney castles.

This line of 12 tower mills described in the story of Don Quixote is among the most iconic landscapes in Spain.

Peek into a cave of giant, glimmering crystals.

A stone slab in Madrid marks the point from which the distances of Spain's national roads are measured.

One of the few remaining ancient aqueducts described by Frontinus as 'the most solemn testimony of the Empire.'

Feast on cuttlefish ink-stained paella by the beach.

A fantastic Christmas tradition where defecation meets the manger.

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 was finally completed in 2026—a century after the death of its architect.

Impressively shaped, perfectly balanced boulders perched on the edge of a sea-cliff.

Ships still use this historic lighthouse to navigate dangerous, island waters.

Let these towering termite-building structures tell you where to go.

A 19th-century perch for spotting sailing ships now boasts one of the most iconic views in the Southern Hemisphere.

An island off the coast of South Australia is home to the last purebred Ligurian bees.

A historic hotel on the edge of the Australian outback.