This daunting 1st century fortress was purportedly the site of one of the most dramatic revolts of the Jewish-Roman wars.

A medieval church with largest and oldest collection of Renaissance frescoes in France.

The world's tallest bridge is also possibly the most elegant.

A museum in England’s Lake District dedicated to the trusty pencil wants you to know the story of their World War II spy pencils.

Once the largest unsupported dome in the world, beating out the Pantheon and St Peters in Rome.

A historic Georgian building and warm springs.

The tower was originally used as a chimney for the waste incinerator of St Johns Precinct and Market.

Created as a punny statement about genetic engineering this monstrous hybrid statue has become a beloved icon.

A tiny, hidden alleyway dedicated to the father of meteorology.

The first botanical garden, a feather in the cap of the Grand Duke of Tuscany.

The bomb-ravaged remains of of a colossal Neptune.

Five candy-colored villages on the Italian Riviera.

The remnants of a depressing public toilet are now a hub of ever evolving street art.

This stunning concert hall has become a symbol of Iceland's national recovery.

One of the tallest buildings in Iceland, and perhaps, the most visually impressive.

Modern design and unusual architecture make this mountaintop temple no ordinary Buddhist retreat.

Monkeys lounge around at this 13th century temple.

The sign at the garden gate reads: “These Plants Can Kill.”

This one-time health resort was used by aristocrats around the world.

This valley of hot springs and boiling mud pots is home to the record-holding "Geysir," which originated the English word.

A million and a half tons of earth were used to create one of the world's largest land sculptures.

Home of the unusual art of water puppetry, one of Vietnam's oldest curiosities.

An ancient stone fortress considered by many to be the eighth wonder of the world.

This elaborate temple was built around one of the Buddha's teeth.