This cemetery has graves dating back to the 17th century, including the city's oldest carved tombstone and an ominous cryptogram.

Blighted Irish field and the ruins of a 19th-century cottage on the edge of urban Manhattan.

A marvel of Byzantine engineering under the streets of Istanbul.

This remarkably well-preserved Egyptian plinth is pretty well traveled for a giant piece of stone.

Ancient serpentine sacrifice holder that has stood the test of time.

A giant scale model giving a sneak peek at what urban planners see for Shanghai by 2020.

An collection of Chinese propaganda posters from 1949 to 1979.

An out-of-place slice of France, smack in the middle of Shanghai.

Peace Park and the Atomic Bomb Dome.

This Japanese national treasure was originally built in 593.

Avoid gangster interaction while window-shopping.

Founded as a refugee camp, now a popular tourist spot.

Traditional 11th-century outdoor tannery.

God's Saharan sandbox of wrath.

An awe-inspiring mosque in Morocco with one of the tallest minarets in the world.

One of the most spectacular canyons in the world.

On this island, you suck away your garbage via an elaborate pneumatic tube system.

This mosaic dedicated to John Lennon was tended for years by a Beatles super-fan.

Mysterious 500-year-old tapestries depict a unicorn hunt.