The ancient sauropod tracks found in this former quarry are some of the largest in the world.

A museum dedicated to "science, history and the arts" little changed since 1915.

A place to see how French aristocrats lived in the early 1900s.

A reconstruction of a classic mansion on the island of Delos was designed for a historian and archaeologist.

Thousands of costumed dolls fill one of the world's creepiest museums.

These constructed wetlands naturally filter millions of gallons of treated wastewater every day.

Museum celebrating the ocean, with the largest wunderkammer dedicated to sea exploration.

A beautiful bronze statue of the greatest fossil hunters of the 19th century.

Two Indiana icons are honored at this tiny museum, which features the world's largest collection of James Dean memorabilia.

This ancient well once held a top-secret royal meeting chamber.

The world's oldest known salt mine.

Home to Hollywood history and a very special salt crystal.

An abused and forgotten metropolis, abandoned for centuries.

This ancient abandoned church in a remote part of Turkey is in danger of falling over.

Remnants of successive wars and Muslim colonialism in the 11th century.

A former salt mine is now a cool picnic spot for families and asthmatics.

Use a key to unlock this medieval sewer tunnel.

A unique museum dedicated to the history of household appliances from across the globe.

An unusual museum home to a vast collection of items that represent everyday life.

This striking structure is the Socialist-modernist centerpiece of a former Soviet spa resort.

This rare collection of human deformities displays fetuses with two faces, one eye, and "mermaid" legs.

Rare documents, old instruments, and gruesome specimens showcase the history of military medicine.

Museum deep in the catacombs of St. Michael the Archangel Church is explored by touch, sound, and smell.

The oldest funicular in Lithuania has been climbing this steep hill since 1931.