In 1888, a resident of Xagħra, Malta, discovered a small underground chamber filled with stalactites and stalagmites when digging a well.

A small cave network was discovered under a home in Xagħra, in 1924 when the owner was digging a well.

Covering 13 acres and hosting 3,000 shops, this is one of Africa's biggest urban markets.

This gorgeous Peranakan mansion’s family heritage includes a century-old baby gate, which was also used to keep out irresponsible husbands.

This statue of an eagle taking flight welcomes visitors to Langkawi.

Cartoon clouds and nature-inspired murals have transformed the streets of Kuala Lumpur.

Home to secret lakes and hidden temples.

The oldest railway bridge in Malaysia.

Kuala Lumpur’s historic single-screen cinema, transformed into a labyrinthine bookstore.

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

Walk through abandoned anti-Russian military tunnels on this volcano at the head of Auckland Harbor.

A secluded oasis of contemporary art and natural beauty.

A 4th-century Roman church complete with a hidden underground cave.

Ancient stone dildos and other odd pieces of medical history are displayed at this quirky Cyprus gem.

Once part of an ancient international harbor, it's now an all-you-can-eat shrimp buffet for flamingos and other water birds.

For nearly 2,000 years this church has been waging war on local snakes by importing cats.

This sea stack in Cyprus is traditionally seen as the birthplace of the goddess Aphrodite.

A crumbling ghost town with prime views of the dam that doomed it.

The ancient mosaics here are considered among the finest in the world, and serve as a stunning record of Greco-Roman daily life.

An ancient necropolis of magnificent tombs.

This abandoned ship has remained in place since it ran aground in 1998.

While most shipwrecks are submerged, this ship in Cyprus ran ashore.

Picturesque basketball courts sheltered by historical defensive walls and with an enviable sea view.

This amazing oasis of art and plants is hidden on the outskirts of Marrakesh.