Situated on a sacred Inca site, this 16th-century cathedral took nearly 100 years to build.

The mysterious "Candelabra of the Andes" could represent anything from a god's trident to a hallucinogenic plant.

The world's largest clay lick, where parrots gather to snack.

The Uros people live on floating reed islands in lake Titicaca.

The largest tea plantation in Southeast Asia supplies gorgeous vistas alongside tea for the surrounding countries.

Holy Hindu shrine in an enormous, monkey-filled limestone cavern.

Taking the subway here means doing so over a bridge located in the middle of an estuary.

This remarkably well-preserved Egyptian plinth is pretty well traveled for a giant piece of stone.

A marvel of Byzantine engineering under the streets of Istanbul.

One of the holiest Shi'i shrines in Iran honors the life and death of a learned noblewoman who became a saint.

The cathedral stands in New Jufa, Isfahan's Armenian quarter that was established in 1606.

This 17th-century structure is a beautiful testimony to traditional Persian architecture

Long before air conditioning, Persian architects found an ingenious way to cool off.

The fire inside this temple has burned for more than 1,500 years.

The hottest, driest, and most scenic desert on Earth.

A historic trade hub teeming with gorgeous architecture, colorful goods, and vibrant designs.

17th century mosque for Shah Abbas' harem.

A lively circle of dancers in the Georgian capital commemorates an ancient rite of spring.

A museum glorifying the life of Stalin, located in the city of his birth.

A small but hugely whimsical theater where marionettes play out the "The Battle of Stalingrad."

You'll find just about anything in this funky Tbilisi flea market.

The charmingly disheveled clock tower of Tbilisi's puppet theater.

Underground monastery and fortress.

On any given day this sprawling market houses literally tons of government-regulated gold, gems, and precious metals.