This ritzy Italian market is built around a statue of an unforgiven heretic who was burned for his belief in an endless universe.

Roman ruins top white travertine terraces formed by ancient hot springs.

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

After nearly 60 years, there's still a bear at Paddington Station looking for help.

Hear the quietest sound from across the dome.

Monasteries on rock pillars, once accessible only by frayed ropes.

Northern Ireland's Brobdingnagian stepping stones.

England's oldest surviving hedge maze has been confusing visitors for over 300 years.

The topiary maze at the Habsburg hunting lodge.

A former fortified tower now houses a collection of classic communications equipment.

An enigmatic monument to the Irish revolutionary who plotted an uprising against British rule.

This modest plaza in Moneygall, Ireland has cashed in on its distant connection to the U.S. president.

The chaotic studio of one of the 20th century's most important artists has been preserved down to the dust.

A hugely vast Irish landscape of barren rock that stretches for miles.

Experience what life was like in Ireland during the Viking and medieval ages.

The oldest public library in Ireland.

Brass bricks outline the locations of Edinburgh's lost, lively market stalls.

For decades, Puerta del Sol has been illuminated by a giant, guitar-wielding bottle of sherry.

These gigantic skeletons tower over visitors and provide insight into the creatures that once ruled over Ireland.

Tourists to the mountaintop Sicilian town often overlook its ancient fortifications.

This triumphal 16th-century arched gateway leads to the oldest street in Palermo.

The walls and streets of the ancient city are peppered with penises.

Thousand-year-old Viking runes adorn an ancient Greek lion at the entrance to the Venetian Arsenal.

Ancient ruins hidden underneath a modern luxury hotel.