This pink watchtower served as the seat of the Greek government after independence from the Turks.

A 2,000-year-old computer demonstrates remarkable engineering and astronomical precision.

This ancient Greek place of assembly and marketplace is being revealed layer by layer below the modern Athens cityscape.

A sharp sculpture made of thousands of pieces of jagged glass.

This ancient hydrological marvel is now the base of a modern outdoor cinema.

The secular incarnation of a religious meditation.

This Italian-style temple replica has been threatening to fall off the Irish coast for hundreds of years.

This short bridge is the only thing connecting a tiny Irish island to the mainland.

A golden egg-shaped sauna in the Arctic tundra.

A little-known sculpture park of contemporary environmental art in a Lapland forest.

Islanders once used this dramatic, otherworldly landscape to hide their cattle from Viking raiders.

An ancient Scottish rock formation said to be the gravesite of a giant remains ensconced in legend and intrigue.

Villas that once served as playgrounds for the rich now fall away in decay.

This irregularly shaped sea fortress has defended not one but three different sovereign states.

Quality time with reindeer in the stunning scenery of their natural Lappish habitat above the Arctic Circle.

An alien church provides much needed silence in the midst of a Finland shopping center.

The only surviving piece of a submarine said to be the most decorated vessel in U.S. history.

Not-so-fearsome tiny trolls live under this wooden train trestle in Portland.

Private collection of art inspired by cabinets of curiosity.

A beautiful 62-acre Catholic shrine and botanical garden.

The only museum of sake in the United States is nestled in an unlikely California college town.

Bonsai garden in Oakland is curated by the first non-Japanese female bonsai master in the United States.

The biggest pinball arcade in the world has over 600 pinball machines, and 300 arcade machines.

A friendly monster lurks outside the State Library Victoria.