The largest free-standing aquarium in the world resides in a hotel lobby in Berlin.

Wall Street has a new heroine, a bronze statue of a small but fierce girl.

Scotland's only funicular railway is also the United Kingdom's highest.

Britain's only herd of free-ranging reindeer.

A hidden tunnel leads to a medieval queen's shrine buried beneath a parking lot.

This bronze statue was erected to honor a small Scottish town's beloved stray cat.

Now famous as the "Harry Potter bridge," this impressive concrete viaduct has long been an icon in its own right.

Largest lake in Great Britain measured by surface area.

This hidden green space is the city's second largest conservatory.

Artists and musicians now rule over this former rail station.

A hands-off space for graffiti artists to hone and display their skills.

More than 5,000 artifacts donated by the people of the city, plus a room entirely devoted to the band U2.

The enchanting archway is the only surviving portal into Dublin's lost medieval wall.

An 80-year-old plane tree is devouring an iron bench at Ireland's oldest law school.

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

The most loyal of little dogs, or a Victorian era publicity stunt?

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

A statue in the heart of Edinburgh honors a bear that served in the Polish military during World War II.

A sweet symbol marks the place where torturous executions were once carried out.

A 18th century graveyard and its astonishing cortege of macabre iconography.

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

There are plenty of wonderful panoramic vistas in Edinburgh, but not many are hidden smack in the middle of the Old Town.

Displaced highlanders would take shelter from the wet Scottish climate under the large walled bridge at Glasgow Central Station.

This stately monument has been wearing a traffic cone hat for decades much to the delight of the locals.