Elaborately carved to showcase the glorious wealth that the age of exploration brought to the Portuguese empire.

On the Spree bank, discover one of the last reminders of a symbolic wall that divided, and was torn down by the people.

This elaborate towering structure was once famed for its revolutionary height.

A vista of the city and sea from atop the little-known viewing deck on an unassuming Columbus statue.

An ancient and majestic fortress that played an integral role in Portugal's road to independence.

A stone copper was sculpted on the wall of the Carlisle Cathedral to honor a local hero.

Displaced highlanders would take shelter from the wet Scottish climate under the large walled bridge at Glasgow Central Station.

A small island abbey is the final resting place of many medieval Scottish monarchs, including the real Macbeth.

Built to give thanks for the passing of a plague epidemic, this cathedral is a one-of-a-kind architectural hybrid.

This ship carrying cargo and four church bells for the Catedral Metropolitana Nossa Senhora Aparecida ran aground in 1968.

Rolling sand dunes of the Sahara... in the middle of the Atlantic Ocean.

A small subculture of boat dwellers keep their traditional way of living alive at this Hong Kong Typhoon Shelter.

This naval gun is fired every day at noon, an odd timekeeping tradition the origin of which is local legend.

A serene space tucked amid the skyscrapers of Hong Kong's bustling financial district.

Taoism, Buddhist and Confucianism are all represented in this temple that claims to answer anyone's wishes.

A neo-Gothic church built to thank God for saving the Emperor of Austria from an assassination.

An exquisite Baroque church in Vienna's old town.

The solemn exterior conceals an opulent interior of this 17th century church.

Yo, Adrian!

A turn of the century building boasting some of the most beautiful art nouveau architecture in Prague.

An eclectic art form practiced by untrained masters is celebrated at this museum in the heart of Zagreb's old Upper Town.

A full figure 4th century incorruptible saint lies in a glass coffin in Croatia.

Inat Kuća, or "House of Spite," is more than just an oddly named restaurant.

The crypt of the imposing Stephensdom holds royal intestines and thousands of skeletons.