The ruins of an ancient Roman tomb hidden in the basement of a trendy clothing store.

An ancient city exhumed from the depths of the ocean.

One of the most poignant ruins of the Chernobyl nuclear disaster, the local football team's stadium has been quickly reclaimed by nature.

The ghost town left by the worst nuclear disaster of all time is being taken over by nature and urban explorers.

A plaque marks the site directly below the mid-air detonation of the atomic bomb over Hiroshima.

The birthplace of both the Atomic Age and Godzilla, and the namesake of the bathing suit.

Memorial to the lost dead of Gdansk, whose resting places were destroyed during World War II.

The site of the first battle of World War II.

This circular Iranian jail was once a political prison run by the country's secret police.

Two Chinese dragons guard the caves of this medieval temple in Iran.

A seaside castle complex that stood through centuries of conquests.

This Norman castle has been the scene of assassination plots, religious persecution, and Nazi conspiracies throughout its long history.

A beautiful ruin of a 14th-century Plantagenet castle built by a medieval mercenary.

This ruined fortress was the stronghold for a persecuted medieval leader and his infamous Assassins.

This natural history collection contains the bones of a circus elephant that seem to be chasing a whale skeleton.

It's believed King John of England stayed at this 13th-century castle before riding off to sign the Magna Carta.

Dozens of Soviet-era trains and carriages fill this outdoor museum.

This former railway facility is the oldest in Slovenia, and now houses a museum showcasing the history of steam locomotives.

This may be the smallest length of railway in the United Kingdom.

A 150-year-old steam locomotive crosses the southern half of the island daily.

One of the last remaining World War II Victory Gardens in the U.S. is quietly growing across from Fenway Park.

A decommissioned tube carriage within a London museum hosts a regular pop-up supper club.

This preserved puppy was an adorable beacon of charity.

A museum in England’s Lake District dedicated to the trusty pencil wants you to know the story of their World War II spy pencils.