One of the Seven Wonders of the Modern World holds the world's tallest metal staircase.

"Girl in a Wetsuit" is what happens when a sculptor has to find a way around a 100 year old copyright.

This expansive bridge in the Canadian wilderness was originally just built for friends.

A six-ton wedding present for the King of the Scots.

The taxidermy remains of the first mammal ever cloned from an adult cell are on display in Edinburgh.

360° views of the city plus five floors of optical illusions and hands-on science.

17th century streets hidden under Edinburgh were once a breeding ground for the black death.

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

Elevated freight railway turned wildly successful urban park.

Tel Aviv's popular neighborhood went though endless waves of transformation.

Israel's first dedicated natural history museum is home to 5 million specimens and still growing.

The maze-like transportation hub contains abandoned areas, derelict stores, and a resident bat colony.

Descend 2,030 years into the past in an ancient tunnel built to support Jerusalem's most famous wall.

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

The home of the Dead Sea Scrolls is an abstract modernist dream.

These numerous Israeli caves were dug out over hundreds years for reasons ranging from hideouts to burial sites.

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

The picturesque birthplace of Icelandic democracy is drenched in the blood of its brutal past.

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

This collection of unique liquids allows visitors to wander the waters of Iceland's glaciers.

Two volcanic lakes in an enormous crater formed in a prehistoric eruption.

This natural Icelandic fissure allows divers to swim right between two volatile tectonic plates.

If a glacial river suddenly diving into a sheer chasm via a dramatic, multi-stage waterfall isn't peak Iceland, it's certainly close.

This elegant arc of a waterfall marks a religious turning point.