Scholar, adventurer, saint, and instigator of the Goa Inquisition.

Modest by day, illuminated majestically at sunset.

This bazaar is one of the oldest in the Arabian world.

This indoor ski resort has a mountain contained inside a mall.

Whitewashed mosque contains the world's largest carpet.

The world’s largest LED display, built over an F1 race circuit.

An unfinished tomb carved into a giant boulder in the Arabian Desert.

Within the Saudi Arabian desert lies a 2,000-year-old ghost town made of stone and mud.

More than 100 monumental tombs carved into rock are preserved at this ancient Nabataean site in the Arabian Desert.

A 19th-century fortress and collection of artifacts offer a tour of Saudi history.

A curious cave church carved into the face of a cliff.

These historic defenses ensured the city within would survive hundreds of years of occupations, sieges, and invasions.

An ancient knight and a symbol of the city's freedom.

A musical instrument played by the sea.

A chain of 16 wondrous lakes formed as a result of the gradual dissolution of soluble layers of bedrock.

Once the home of a hermetic monk, this cave now houses a small church.

Museum dedicated to the terror regimes of Hungary.

From Austrians to Nazis to Soviets, this historic Budapest fortress has a history as complex as the city itself.

A church of bones, decorated with 40,000 human skeletons.

Microscopic scenes; some call it novelty, some call it art.

An enormous and lavish Gothic church in Czechia.

Synagogue built from the stones of Solomon's temple contains the golem of Prague.

Countless grotesque faces stare out from this eerie Prague art wall.

Macabre astrological automaton clock dating to the late 1400s.