Fortresses

A well preserved medieval fortress in Vojvodina.

The city walls of Salé lead to the ruins of this seaside "bastion of tears."

A maze of underground tunnels beneath one of the most beautiful forts in Serbia.

A medieval stronghold rising over the ruins of ancient Roman villas along Rome's southern coast.

This castle has links to Portugal’s founding and struggles for independence.

A palace-fortress ruin in Indonesia complete with legends of two magical tigers, eight bathing angels, and a wish-granting cannon.

This World War I fortress is the perfect place to catch a Montenegrin sunset.

This volcanic plug boasts the longest recorded history of any Scottish stronghold.

A fortified medieval basilica on the Caelian Hill preserves extraordinary frescoes and one of Rome's most beautiful hidden cloisters.

Local lore claims this rocky cape hides a lost Aztec treasure.

An 18th-century battery complete with original kitchen and garrison.

A unique military outpost carved into a rocky outcrop in the English Channel.

Spanish architects used seized Muslim gravestones to rebuild parts of the fortress.

A Victorian Fort built into the chalky cliffs that overlook the English Channel.

The ruins of a pre-Columbian fortress city so secure it held off the Spanish conquistadors for over 20 years.

This ancient Irish landscape boasts hundreds of legendary ruins.

Despite being of the most short-lived republics in history, this small Chilean town won’t forget its two days of independence.

This Arab fortress was once the largest citadel in Western Europe.