Africa's fourth longest river originates from a burbling spring in a secluded stretch of woods.

This unassuming oasis elevated just above the busy streets of Jerusalem offers one of the best views of the Old City.

This former Imperial summer home was the venue for a royal slap that once echoed 'round the world.

The legendary luxury train passage is commemorated with a charming museum inside its former eastern terminus.

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

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.

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

A cluster of historic bathhouses built on the famed hot springs that gave the Georgian capital its name.

This Himalayan airport provides one of the most difficult landings in the world.

The small cliffside monastery known as the Tiger's Nest is said to be the meditation site of an 8th-century Buddhist master.

This peaceful sanctuary is one of the oldest Buddhist temples in Colombo.

This ancient cave temple complex is the largest and best-preserved temple complex in Sri Lanka.

This fort dates back to 1588 and was colonized by the Portuguese, Dutch, and English and sits prominently on the Indian Ocean where azure water lap the coast.

This elaborate temple was built around one of the Buddha's teeth.

An ancient stone fortress considered by many to be the eighth wonder of the world.

Ming Dynasty necropolis raided during the Cultural Revolution.

The most famous location in China was home to whole dynasties worth of imperial rulers.

A white Buddhist temple with a golden restroom.

Meant to be a lavish presidential home, the palace became a symbol of the fall of South Vietnam.

Witnesses claim the Virgin Mary statue outside the church once mysteriously shed a single tear.

The lavish temple of the Cao Dai religion that includes Buddha, Mohammed, Joan of Arc, and Victor Hugo.