The first museum dedicated to exploring humanity's cultural relationship with the celestial world.

Travelers who fall victim to this mermaid's charms are destined to stay in Užupis forever.

Rusted structures stand like ghosts of Cyprus' 6,000-year-old copper industry.

Archduke Ferdinand II's collection of rare objects is considered one of the oldest museums in the world.

The housing complex served as an anti-fascist fortress during the Austrian Civil War.

The first tourist attraction to offer tours for interstellar tourists.

Dine on food tied to Viking history and legend at this subterranean Stockholm spot.

Menacing or in memoriam, the Silent People and their meaning are left to interpretation.

A symbol for the opposition to nuclear power around the world.

Iron Age "bog person" preserved for over 2,300 years.

Old Danish castle immortalized in Shakespeare's Hamlet.

A unique public space where the walkway is paved with thousands of porcelain tiles.

In a divided Germany, Potsdam's "central" train station was relocated to the city's southern suburbs to avoid West Berlin.

The monument honors the first (and for a long time, only) African-born philosopher to teach at a German university.

A series of mysterious metal artwork adorn this harbor walkway.

When a missile testing site was proposed near this site in the Outer Hebrides, this statue was commissioned in response.

One of a series of sculptures making a statement about sea-level rise in the United Kingdom.

An amazing model of a whale's jaw bone pays homage to the region's seafaring traditions.

A never-finished memorial to the heroes of the Napoleonic War has become "Scotland's Folly."

The longest staircase lock in Britain.

A remarkable feat of Victorian engineering across the Firth of Forth.

These formal gardens were designed to be admired from the vantage point of the castle.

This mural condenses 96 miles of one of Scotland's best-known trails into a unique art display.

A red-brick beacon stands against the tempestuous Atlantic, on the windiest site in the United Kingdom.