A charming 17th-century alley is lined with secondhand bookstores and antiquarian shops.

Those who own or stay at this 500-year-old, allegedly cursed house often meet terrible fates.

This network of narrow, medieval passages has the most delightful name.

Lines from a walking song are etched into a rock in Natural Bridge State Park.

These ruins of a sacred Ancient Greek temple stand next to a luxurious modern resort.

This once-derelict building is now one of the most beautiful bookstores in the world.

An easily overlooked stretch of ornate window fronts and gaslight lamps that could be right from the pages of Dickens.

An artsy hidden staircase leads to breathtaking views of San Francisco.

A huge musical instrument played by the ocean.

This astonishingly geometric cave has inspired everyone from Jules Verne to Pink Floyd.

A long spiraling walkway winds through the woods, and around a copper beech tree at the center.

On a winding Vienna side street, one museum has turned their windows into a monument to history’s peace-minded heroes.

An exquisite Baroque church in Vienna's old town.

The Habsburgs' royal collections of art and wonders.

Legends surround an ancient tree trunk riddled with nails for good luck.

Built to give thanks for the passing of a plague epidemic, this cathedral is a one-of-a-kind architectural hybrid.

Located right outside of Vienna, visitors can take in expansive views of an ethereal forest.

A tropical paradise just a short trip from the opera house is filled with beautiful winged creatures.

The beautiful baroque library of the Hapsburg empire.

This charming wooden church was disassembled and moved not once but twice before settling in this Prague garden.

This artificial cave looks like something out of a fairytale.

A bust of Franz Kafka spins in pieces, reflecting the writer's inner torment.

Despite attempts by local police to discourage it, Beatles-inspired graffiti has been a means for artists to air grievances for decades.

What looks like a suicide in progress is actually a statue of Sigmund Freud.