This memorial to a murdered empress took 20 years to design, then spent 30 years hidden away in storage.

The geographical center of Budapest is marked with a 10-foot-tall stylized zero.

This tomb of a Sufi mystic is a remnant of Ottoman rule in Hungary.

Legions of Roman soldiers bathed in this ancient spa complex under a Budapest transit station.

The remains of a 13th-century Romanesque church lie abandoned on a hillside.

Outside of Budapest, a reconstruction of a 16th-century fortress.

World's tallest cigar-shaped radio tower.

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

This building has survived for more than a century and remains virtually untouched.

Also known as Uncle Karl, the beloved bronze copper keeps a watchful eye on St. Stephen’s Basilica while people rub his lucky belly.

Some of the greatest minds in the history of Hungarian art and science converged in this café.

Once the home of a hermetic monk, this cave now houses a small church.

This Budapest bar allows drinkers to leave their mark on the walls, floor, and even ceiling.

This Hungarian castle was built out of cardboard and wood until it proved so popular that it got upgraded to stone.

One of the best-preserved Roman amphitheaters is still used today, but for less brutal events.

Picturesque basketball courts sheltered by historical defensive walls and with an enviable sea view.

Bridge that died in war and was resurected.

This abandoned Olympic skiing facility still bears the scars of the Siege of Sarajevo.

The possible imprisonment of Vlad the Impaler here earned the medieval castle its nickname, "Dracula's Castle."

One of the tallest buildings in Iceland, and perhaps, the most visually impressive.

One of the oldest family businesses in Reykjavík serves lamb-based hot dogs.

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

This boat represents the promise of undiscovered territory, a dream of hope, and progress and freedom for Iceland.

Puffin enthusiasts flock to Europe's largest seabird cliff, which over one million birds call home.