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

Peace Park and the Atomic Bomb Dome.

2300-year-old Roman road connecting the empire.

Monasteries on rock pillars, once accessible only by frayed ropes.

Northern Ireland's Brobdingnagian stepping stones.

Dublin's "Dead Zoo" serves as a window to Victorian museum design.

Some of the saint's blood and bones are said to reside in Dublin.

One of Ireland's most infamous prisons for rebels including men, women and children.

The ancient tomb acts as a calendar that keeps perfect time.

This centuries-old tree tells an unusual tale of vegetation and fertility in the desert.

Skyscraper powered by wind turbines attached between its towers.

An ancient capital city that dates back 3,000 years and harbors many surprises.

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

Single runway interrupted by a busy road that cuts across its middle.

Mosaics, storks, and brothels—this ancient city has it all.

Bizarre living fossil only grows in a small chunk of the Namib Desert.

Relics of Australia's convict past, and a modern scene of unimaginable horror.

One of the best beaches in the entire world.

Aqua white sand highlighted with fiery red rocks.

A colossal floating restaurant built to look like a ancient Chinese imperial palace.

The world's longest outdoor covered escalator system transports commuters through Hong Kong's hilly terrain.

Climb to the top of the world's largest seated bronze Buddha.

Hundreds of Buddhas in a re-discovered Indonesian temple.

An abandoned Jazz Age dream home and con man's hideout in Death Valley.