One of the best-preserved Roman amphitheaters is still used today, but for less brutal events.

A musical instrument played by the sea.

A chain of 16 wondrous lakes formed as a result of the gradual dissolution of soluble layers of bedrock.

This restored colonial house was once home to the botanist responsible for bringing avocados to the U.S.

Deep in the Guatemalan jungle stands an ancient pyramid that once marked the reign of a king.

Central America's deepest lake is actually a volcanic caldera, surrounded by three volcanoes.

One of the world’s most colorful cemeteries, where each pigment is symbolic.

Monumental paintings, discovered in a Mexican cathedral in 1957, depict the deaths of some friars in Japan.

In this breathtaking canyon, crocodiles bask on boulders and glide through the murky waters.

This museum houses two of Mexico's most impressive Aztec monoliths.

Once home to an aristocratic family and a workers' organization, this intricately tiled building now houses a chain restaurant.

The striking jade death mask of an ancient Maya king is displayed in a replica tomb in Mexico City.

This "cursed house" features secret rooms, hidden vaults, and dark escape tunnels.

These enigmatic columns tower over the ruins of an ancient Toltec city.

The ruins of an ancient city built by Mayan traders is centered around a temple of a sacred feathered serpent deity.

A disquieting Aztec sculpture displays hundreds of stone skulls representing the victims of human sacrifice.

Clap your hands at the base of the pyramid, and the song of a sacred Mayan bird will echo through the air.

An elaborate Mayan city shrouded in alien conspiracy revealed the tomb of Pacal the Great.

Diego Rivera's massive tiled fountain and failed infrastructure project.

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

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

This volcanic cave lake is essentially hard proof that Iceland is the most magical place on Earth.

This canyon is comprised of gorgeous waters and magnificent basalt columns.

Instead of solid circles, the stoplights in this northern Icelandic town have glowing red hearts.