This apartment is a true time capsule of local life in Bulgaria during the Soviet regime.

This castle played host to the largest great hall found in medieval Central Europe.

This temple was constructed entirely by Roman soldiers.

This abandoned Victorian-style house was built in 1884.

This tablet indicates where the tragic monarch returned to begin her tumultuous downfall.

One of the most well-preserved mammoth specimens in the world.

Home to the ancient Roman temple of a lesser-known Celtic god that inspired J. R. R. Tolkien and H. P. Lovecraft.

The only remaining arch of the oldest stone bridge in Rome stands in the middle of the Tiber.

Templar knights fleeing persecution are said to have left this sword in stone as a landmark in 1307.

Next to the Leaning Tower of Pisa is a cemetery home to ancient sarcophagi and disturbing murals.

The last occupied troglodyte dwellings in England weren't abandoned until the 1960s.

A rare example of a medieval house in Rome adorned with a melancholic inscription.

In 2010, Nicolas Cage purchased two plots in this cemetery using one to construct this strange pyramid mausoleum.

The ghosts of Britain's telecommunication past sit rusting away in a small village in England.

This lighthouse was crafted as penitence for the theft of wine bound for a monastery.

This rare surviving broch is one of Scotland's most impressive Bronze Age structures.

One of the oldest cemeteries in Germany was originally used for victims of a cholera epidemic.

An ancient Roman temple first dedicated to an emperor's wife is now a church.

This Iron Age hill fort remained hidden until a series of storms revealed its history.

This mysterious Bronze Age standing stone has become a place where couples profess their love.

During the 1990's nearly all of the world's LSD is thought to have come from the operators of the lab once located in this missile silo.

It's believed Matilda Fitzwalter's life was the basis for the famed literary figure.

Inside this church is an obscure piece of art carved by the famous Alice Liddell.

These ruins have been linked to a sherbet factory that exploded, but the story may be entirely fictional.