The other side is actually green.

Mosaics, storks, and brothels—this ancient city has it all.

One of its engravings is believed to be among the first representations of medical and surgical instruments.

The largest known Ancient Egyptian obelisk.

Known as the Sistine Chapel of Egypt, this tomb houses some of the most well-preserved paintings in Egypt.

These Egyptian statues have survived for 3,400 years and were an acoustic wonder of the ancient world.

Ozymandias’ time-keeping temple.

The mummified right fist of a 1,000-year-old saint-king sits inside an ornate golden reliquary.

The heart of a Scottish legend had a centuries-long journey before reaching its final resting place.

This permanent collection of preserved bodies taken from Irish bogs is one of the leading authorities on such morbid mummies.

This elaborate temple was built around one of the Buddha's teeth.

His music once banned in Communist Cuba, John Lennon is now immortalized in bronze by Castro, who considers Lennon a "fellow dreamer."

This small Arkansas town once had a close encounter with the Beatles, and are determined never to let anyone forget that. Ever.

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

What do we know about the real woman behind one of the Beatles' most famous songs?

The quiet field that inspired one of the most famous songs of all time.

The Liverpool street made famous by the Beatles is real.

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

Monasteries on rock pillars, once accessible only by frayed ropes.

The yawning maw of this pagan visage is said to bite off the hands of liars.

One of the most beautiful bookstores in the world hides a neo-Gothic interior behind an art nouveau facade.

Rome's semi-secret peephole vista is also a former Crusader stronghold.

"Respectful to the dead, safe and sanitary to the living, dedicated to the Genius of Memory..."

This rugged area of red rocks and arches is often considered one of the most beautiful places on Earth.