A vista of the city and sea from atop the little-known viewing deck on an unassuming Columbus statue.

This influential Renaissance-era library was once the haunt of kings and monks.

This sweet-toothed bear searching for snacks has been a symbol of Madrid for decades.

Originally used to sell brandy, the bull-shaped billboard became an iconic symbol of Spain.

Originally planted by the ancient Carthaginians, this sprawling palm grove is one of the largest in the world.

A curious carving hides on a marble column in the Mosque-Cathedral of Córdoba.

According to the Guanches, the aboriginal people of the Canary Islands, the king of evil lives inside this volcano.

It is said that each of the white stones in the red facade of this medieval house represents the head of a murdered Swedish noble.

Now a hotel, this former bank was the site of a robbery that spawned a psychological phenomenon.

Sweden's "good old days" painstakingly re-created in a model village.

It houses the remains of a 17th-century version of the Titanic.

The stoutest tree in the world.

The splendor of this 17th century golden chapel has led it to be called the "eighth wonder of the world."

The famous artist couple lived and worked here, in two different houses separated by a bridge.

Mexico's astounding mummy museum with "the world's smallest mummy."

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

Frida Kahlo's childhood home, now a museum of her life and works.

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

Khmer Rouge's high security prison.

5,000 skulls in memorial to those killed by the Khmer Rouge.

Hoax, mistake, or evidence of dinosaurs in human times?

A battle between nature and architecture in the Cambodian jungle.

Bangkok celebrated its shifting monarchy with a militaristic homage to democracy.

This seemingly random 30-foot statue of an oryx in Qatar's capital was a mascot for the 2006 Asian Games.