For part of the year, this innovative greenhouse is painted white to keep the plants from getting scorched.

A giant sculpture of the legendary "Salmon of Knowledge" celebrates the return of fish to Belfast's River Lagan.

Originally commissioned as a sculpture to reflect the history of Belfast's red-light district, the final sculpture has been banned from Belfast public land.

This massive monument has been telling the time for 150 years—at a slight angle.

This Victorian-era public house has set the standard for pub-style elegance for over a hundred years.

These barriers stand as stark reminders of Northern Ireland's troubled past.

You can see three Irish counties from this Neolithic hillside fort, once the seat of the Kingdom of Ailech.

A museum dedicated to the tragedy of Bloody Sunday.

A map made up of 32 different materials, representing Ireland's 32 counties.

A tiny microvalley etched into the side of Knocknarea Mountain hides another world.

The ruins of a sixth-century monastery sit on the banks of the River Shannon.

A delightful but little-known public observatory and planetarium in Munich.

This sinister Baroque entryway could lead you to a terrible fate.

This massive boulder was hurled into a Zurich church when a gunpowder depot was struck by lightning in 1652.

This 135-year-old weather station studied the effects of the climate on human health.

Where the lovelorn find a home for their sentimental keepsakes.

In between two buildings in Ljubljana, medieval tunnel to nowhere.

This house is one of the most colorful in the country, and is the last remaining example of a historic villa.

Rainbow shutters decorate this former police station.

A venerated grave atop an ancient royal hill, often attributed to the last king of Singapura.

This museum explores iconic buildings and the cultural heritage of Malaysia in miniature form.

This surprising museum tells the story of modern Malaysia through the history of its law enforcement.

Holy Hindu shrine in an enormous, monkey-filled limestone cavern.

This massive piece of artwork weighs more than 250 tons, and was designed as a tribute to the first president of the United Arab Emirates.