Rainbow shutters decorate this former police station.

A white Buddhist temple with a golden restroom.

The iconic boulevard is the perfect place to catch sight of a bicycling skeleton, a levitating Satan, or a chef with his head stuck in a pizza.

Mountain where Jesus was first tempted by the Devil.

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

A massive collection of petroglyphs dating back some 40,000 years.

This mysterious but iconic tapered tower appears in many Azeri fairytales and legends.

The building's fluid, wavelike walls are a true feat of architectural ingenuity.

A unique museum dedicated to culture and artistry of carpet weaving.

A gigantic collection of teeny, tiny books.

Home to nearly a third of the world's mud volcanoes, Azerbaijan is home to a messy, bubbling, and sometimes explosive landscape.

A shrine of fire worship built on top of a natural flame.

Mysterious hillside with a continuously burning natural fire.

With over 10,000 lights, this engineering marvel lights up the city after dark.

This extraordinary, multi-pillared monument depicts the fascinating history of Georgia.

At this rare mosque in Tbilisi, Sunni and Shia Muslims pray side by side.

Monks in the empyreal Alazani River valley have preserved their 1,000-year-old winemaking tradition.

This architecturally eclectic fortress witnessed centuries of bloody turmoil, including the massacre of its ruling clan.

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."

Fortified homes of highland warriors that are still in use today.

A cylinder monument with a spectacular vista commemorates a friendship that some say never existed.