Sacred Buddhist home of some spiritual monkeys.

One of the largest Buddhist stupas in the world keeps an eye out in every direction.

Space-age minarets towering over Islamabad.

An underground world of gorgeous, palatial metro stations designed as a nuclear shelter complex.

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

The world's second largest salt mine, said to have been discovered by Alexander the Great's horse.

The tomb of one of the greatest travelers in history.

The world's longest continuously running show has played at this small West End theater since 1974.

A small triangle of DC grass is the final resting place of one of Sonny and Cher's songs.

The most famous location in China was home to whole dynasties worth of imperial rulers.

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

These pastel-colored homes were built when the island of Macau was a Portuguese colony.

This newly renovated Soviet-era outdoor exhibition center is bigger than the principality of Monaco.

One of the world's tallest statues is also one of its most hated.

Moscow's imposing monument to the Space Age.

This hidden art nouveau gem was designed by an architect in search of a national style.

Some of the greatest minds in the history of Hungarian art and science converged in this café.

Late at night, the bust of the "Dracula" actor was snuck onto the facade of this Budapest castle.

This Hungarian castle was built out of cardboard and wood until it proved so popular that it got upgraded to stone.

A trail of iron footwear stands as a monument to the thousands executed along this riverbank during WWII.

China's beehive-shaped pyramids house the remains of a lost kingdom.

One of the oldest family businesses in Reykjavík serves lamb-based hot dogs.

Natural arch offers panoramic views of Yangshuo's karst hills.

A small 12th-century temple surrounded by waters believed to have curative properties.