A haunting place that is now home to thousands of birds.

A surprisingly large and sturdy ruin on the outskirts of a remote village.

A beloved tribute to the Fab Four and the freedoms they inspired.

This colonial fort is an intriguing example of Renaissance military architecture.

One of the biggest markets in Asia, under one of the continent's largest domes.

A superb spot to appreciate the traditional boats of the Indian Ocean.

This extremely remote border crossing was closed to prevent smuggling and looting.

An outstanding piece of retro Sci-Fi architecture built into a sacred mountain.

History, geography, and shamanism meet in this eye-catching monument to the greatness of three empires.

The remains of an ancient city-state along the Silk Road.

Dedicated to a Bolshevik revolutionary, this museum is a true time capsule of the Soviet era.

Built entirely of interlocking pieces, construction of this Chinese Muslim house of worship required zero nails.

This village was once a thriving Soviet uranium mining center, but is now semi-abandoned and desolate.

This mysterious complex of abandoned yurts and fading murals was meant to be a center of science and spirituality in Kyrgyzstan.

A building facade covered with the statues of 11 giants of Tajik literature.

An unusual monument to a gentle giant who became a Kyrgyz hero.

This ancient Silk Road outpost overlooking the Wakhan Valley is miraculously still standing.

A strip of neutral ground where the people of Tajikistan and Afghanistan come together to trade.

Ancient barriers wrap around what was once an important stop along the Silk Road.

This temple located on a vertical drop of a rocky mountain houses relics from the Song Dynasty.

In Zanzibar, a historic 19th-century palace is a reminder of the world's shortest war.

Touching displays of wishes for peace from the Cold War era.

Where Stoddart and Connolly suffered in the infamous Bug Pit.

This "tower of death" has acted as an observatory, a religious hub, and an executioner's lair.