The only "Egyptian" pyramid in Europe and the legendary tomb of Remus.

This entire town moved to a safe location after it was devastated by an earthquake, but the remains of the original town are still around.

The world's most active stratovolcano is almost always erupting.

This subterranean disco dance club in a Cuban cave comes with bright lights and a dark legend.

Two geological phenomena in one precarious locale: a towering stone window, and a deep blue void.

On this tiny spot of land in the middle of Lake Titicaca the only ones who do the knitting are the men.

Building this tragically pointless stone barrier cost the lives of the prisoners made to build it.

Death road of Bolivia.

Plundered and left asunder by grave robbers, this ancient necropolis has been painstakingly pieced back together.

Famously misunderstood wonder of the ancient world

The oldest inn in England served brew to the crusaders.

This preserved puppy was an adorable beacon of charity.

The twin towers in this Chicago fountain use 50 foot tall video screens to spit on people.

Four glass boxes hover over 1,000 feet in the air to give visitors an unparalleled view of Chicago.

One part local history, 99 parts gruesome haunted house.

Hear the quietest sound from across the dome.

Giant, friendly pelicans in Central London, the most unlikely of places.

A massive underwater sinkhole made famous by Jacques Cousteau.

Every equinox this Maya pyramid puts on a spooky ancient light show.

No telescopes, no power, no gift shop: The Observatory of Chichen Itza, one of the world's oldest observatories, takes astronomy back to basics.

Despite attempts by local police to discourage it, Beatles-inspired graffiti has been a means for artists to air grievances for decades.

Macabre astrological automaton clock dating to the late 1400s.

Jumping-off point for a climb up Mt. Everest is the most dangerous airport in the world.

Last stop before the top of the highest peak in the world.