The castle was reconstructed to fit Kaiser Wilhelm II's romanticized vision of the Middle Ages.

This lovely little bridge hidden in a Switzerland gorge is essentially a fairytale.

This 170-year-old Swiss guesthouse built into the side of a mountain is best accessed by a cable car.

A 22-million-year-old sandstone cave is a natural habitat for award-winning cheese.

This open air archeological site houses almost as much wildlife as it does classical religious artifacts.

Dedicated to the god Dionysus, this theatre was used for both musical and theatrical performances.

One of the largest single-span stone-arch bridges in the Balkans looks like something straight out of a fairytale.

Local lore says two enemy dragons live within these breathtaking mountain lakes.

This 13th-century monastery chiseled into the side of a mountain is equipped with a bridge that can be lifted to protect against raids.

The ruins of this monumental city founded by the first Roman Emperor are strangely overlooked by most travelers.

This 200-meter-high waterfall marks the site of Achilles’s immortal baptism at the mouth of the River Styx.

A staircase made of gravestones leads up to this church built into a giant rock.

This slumbering beast honors the Bavarian soldiers who died in Greece during a 19th-century typhoid outbreak.

Built by the Ancient Greeks, this chariot bridge is still in use today.

This legendary city has been a tourist attraction for centuries.

Elaborate stone houses constructed from the ruins of war.

A Byzantine-era church hidden in a wooded area below the Acropolis.

These caves secretly held national treasures during World War II.

This mystical orb covered in strange symbols is thought to have been used in ancient Greek magical rituals.

An often overlooked ancient site in downtown Athens with substantial history (and nature).

The only ancient site that remains on the south bank of the sacred Ilissos river.

The ruined doorway is a portal to the building's turbulent and torturous past.

A 2,000-year-old computer demonstrates remarkable engineering and astronomical precision.

This seaside sanctuary was once one of the most important religious sites for women in ancient Greece.