Oakland's beautiful monumental cemetery.

Bonsai garden in Oakland is curated by the first non-Japanese female bonsai master in the United States.

Hidden behind a wall, Spanish nuns distribute their signature sweets on a revolving tray.

Eat the ultimate iteration of Portugal's most beloved pastry.

An exquisite collection of fairytale conveyances that puts most car museums to shame.

Located in the thermoelectric factory that once powered the entire city, this Portuguese museum is shockingly fascinating.

Elaborately carved to showcase the glorious wealth that the age of exploration brought to the Portuguese empire.

This once-forgotten oasis in the middle of Lisbon was first created over a century ago quite by accident.

The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.

Site of a classic 19th-century physics experiment to prove the earth is rotating.

More than 50,000 gannets claim the cliffs of Bonaventure Island.

An outstanding and haunting glimpse of the horrors of the Great Famine of Ireland.

Stockholm's decidedly unique public transit system has doubled as the world's longest art gallery for decades.

A fake Transylvanian castle houses a cathedral of antlers.

The holes in this wall provide a glimpse into Jewish life in Budapest, both past and present.

Hungarian Jews were ghettoized during the Second World War, but little remains of the original wall that closed the Jewish people off from the rest of the city.

A highly-criticized monument in Budapest has become the site of a makeshift Holocaust memorial.

Built in 1870 at the bridge that connected Buda and Pest, this spectacular incline railway was almost lost forever during World War II.

A trail of iron footwear stands as a monument to the thousands executed along this riverbank during WWII.

The Adriatic's most famous wind can be reliably experienced in the city's Marina.

One of the tallest lighthouses in the world also serves as a monument to the fallen of World War I.

This sculpture honors the man who was known as the "Righteous Among the Nations."

The metal leaves on this tree are engraved with the names of Holocaust victims.

A plaque bearing the names of those who dedicated themselves to protecting Budapest's Jewish population during World War II.