A historic bridge with a lovely acoustic anomaly.

This supermarket is suspended 25 feet above an interstate highway.

Heralded as the world's first theater, these ruins are often overlooked as they reside in the shadows of the Acropolis.

Legend says this sacred tree was a gift from goddess Athena.

An ancient octagonal weather station named for the eight Greek gods of wind.

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

The ruins of an ancient Roman tomb hidden in the basement of a trendy clothing store.

The de facto symbol of Copenhagen is this bronze fairytale which cannot seem to keep its head for very long.

The oldest pub in Ireland may also be the oldest surviving bar in the entire world.

The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.

The modern birthplace of Irish freedom.

The oldest public library in Ireland.

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

A trail of "Game of Thrones"-themed doors carved from fallen trees from the iconic Dark Hedges.

Northern Ireland's Brobdingnagian stepping stones.

The ruins of this medieval castle in Northern Ireland have inspired artists from C.S. Lewis to Led Zeppelin.

A beautiful Victorian-era cemetery, complete with a miniature village.

One of the largest public collection of historic armored and military vehicles in North America.

This restaurant proudly displays bread signed by the 39th president.

An unusual, super-sized grocery adventure awaits in an Ohio suburb.

The largest earthwork effigy in the world.

Rare recess caves fill this unbelievably beautiful Ohio park.

Prison made famous by The Shawshank Redemption has been out of commission since 1990.

An office built to look like a giant basket.