This magnificent market stands as a poignant symbol of the suffering caused by the Spanish Civil War.

A museum dedicated to the former country.

Destroyed Serbian army headquarters sits half crumbled in a largely revitalized Belgrade.

Nikola Tesla's ashes are held in a golden sphere, surrounded by his works.

This 23-foot-tall bear stands amid the hustle and bustle of Hamad International Airport.

Qatar's oldest market can trace its origins back more than a century.

Elaborate tile work in this railway station tells the story of Portugal.

St. Mary's features one of the most spectacularly decorated cathedral interiors in all of Europe.

This sprawling concrete suburb of Kraków was designed by the Soviet Union as the model proletarian city.

Built on the remains of one the Incas’ most important gathering spots, this square keeps the spirit of a fallen empire alive.

Situated on a sacred Inca site, this 16th-century cathedral took nearly 100 years to build.

The intricate stonework of Machu Picchu serves as a testament to Incan engineers.

This fortress dates back to the 6th century and is also the site of a controversial abandoned restoration project.

This exclusive resort has completely covered a tiny Balkan island in a 5-star warren of guest rooms.

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

This former KGB building is now a museum memorializing the people who suffered during the Soviet regime.

This museum is dedicated to one of Russia's greatest explorers.

Lonely minaret stump of a destroyed city.

An outstanding piece of retro Sci-Fi architecture built into a sacred mountain.

This medieval city gate is now a blend of the past and the modern world.

The remains of the left arm of the levitating philosopher-saint are kept in a 13th-century Neapolitan basilica.

The Neapolitan Cult of the Dead still cares for the skulls at this mini-Fontanelle.

Every day is like Christmas on this street where the traditional Neapolitan nativity scene comes to life.

This shining multicolored metro station deep under Naples is said to be the most beautiful in Europe.