Built by a king and rebuilt by an emperor, this aqueduct transported water for 1,200 years to this ancient Mediterranean hub.

Oldest Protestant church in the Middle East, designed to resemble a synagogue.

The only quarter of the Old City not dedicated to a major world religion.

A former Latvian headquarters of the brutal KGB secret police is now open as a grim reminder of their atrocities.

The oldest housing complex in Riga is a mini timeline of architectural trends.

This controversial statue once honoured a Russian Field Marshall, before ultimately being dismantled in a push to remove symbols of Russian influence.

A bare tree in Riga’s Esplanāde is transformed into an extraordinary vertical neighbourhood by scores of colourful bird nesting boxes clustered across its trunk and branches.

Latvia's symbolic mountain-shaped national library is home to millions of cultural tomes.

A statue built to honor the elite soldiers who fought for Latvia during World War I.

The reconstruction of this prominent building fulfilled a long-written command.

3,000 market stands in five former Zeppelin hangars.

The European Union’s tallest freestanding structure provides radio and television broadcasting to half of Latvia.

In the waters outside Helsinki, a tiny island once used as a military outpost now welcomes visitors.

A subterranean house of worship carved right out of the bedrock.

This homeless brass fox tugs at your heartstrings from the foot of a Stockholm bridge.

It houses the remains of a 17th-century version of the Titanic.

A museum that dives into Sweden’s maritime past through preserved shipwrecks and interactive exhibits.

Sweden's "good old days" painstakingly re-created in a model village.

Home to three historic ships from the age of Vikings.

Across the Pacific in a raft, a museum dedicated to Thor Heyerdahl's now legendary expedition.

Housing the famous Norwegian ice-defying 19th century polar exploration ship.

The design of this beautifully crafted building was inspired by Norwegian glaciers.

A museum dedicated to a secret military hospital hidden beneath a castle in Budapest.

A trail of iron footwear stands as a monument to the thousands executed along this riverbank during WWII.