Monkeys inhabit the lush forest surrounding ancient Mayan ruins once considered sacred.

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

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

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

The first official clock in North America, it kept time for the Spanish government of Santo Domingo.

The first hospital in the New World.

Hundreds of pieces of ancient Taíno art cover the walls of this Caribbean cave system.

Nearly three decades since the fall of the Soviet Union, the hero of the USSR still stands over Belarus.

The sad remains of a monument to martial arts legend and movie star Bruce Lee—in the middle of Balkans.

This picturesque monastery at the base of a cliff is a peaceful oasis open to all visitors.

This historic timepiece is thought to be the only public clock in the world that keeps lunar time.

A number of craters left by fatal mortar strikes have been filled with red resin to remember those lost during the Siege of Sarajevo.

This ironic war memorial thumbs its nose at a campaign of inedible humanitarian aid food products.

A decaying, yet still functioning, work of communist architecture.

This building has two facades of clashing architectural designs.

Oriental bazaar in the heart of Sarajevo.

An homage to the medieval rulers of Bulgaria.

Sofia's legislative center is continuously reinventing itself.

A gigantic statue of a Russian soldier watches over the ancient city of Plovdiv, a prominent reminder of the Soviet period in Bulgaria.

A vast Communist-era exhibition space in the Bulgarian capital.

Eastern Bloc nostalgia, anybody?

This ancient theater, restored in the 20th century, lives on as a venue for dramatic and musical performances.

A collection of art from Bulgaria's time as a communist state.

A striking symbol of the Bulgarian capital.