Looking for a unifying history, Uzbekistan finds its answer in a 14th Century Turco-Mongol conqueror... despite the fact he wasn't Uzbek.

A monument to the bloody fight against fascism in Slovakia during World War II.

An underground world of gorgeous, palatial metro stations designed as a nuclear shelter complex.

An ancient necropolis of magnificent tombs.

Burial grounds for more than 1,000 bodies deep under the modern town of Rabat.

Home of the infamous Cauld Lad of Hylton and one of the inspirations behind "Alice" in Sunderland.

According to local legends, a monstrous worm once wrapped itself around this hill by the River Wear.

This now museum began supplying water to Sunderland during the mid-19th century.

The former "holiday home" for monks at the Durham Cathedral.

Nicknamed the 'Chestergate Hotel,' the underground tunnel had beds, lights, and even flushing toilets.

Inside a Scottish castle hangs the tattered remains of a flag with murky origins and supposed magic powers.

Order a salt beef-loaded beigel at any hour of the day or night at this East End institution.

This forgotten chalk mine was reopened thanks to a massive effort from the local community.

The grand complex of buildings that comprise Liverpool's Exchange Flags includes a vast World War II bunker that has been frozen in time.

Created as a punny statement about genetic engineering this monstrous hybrid statue has become a beloved icon.

This Norman castle was once the site of a Victorian-era prison, and now exists as a luxury hotel.

Though it's not the largest, this one-kilometer outdoor market is reportedly the longest in Europe.

This abandoned gun tower was built to defend the River Thames from a French naval attack.

This gorgeous space is England's largest independent library outside of London.

The world's oldest model village.

Behind one of the world's most impenetrable vaults is a massive collection of retail silver.

A nuclear bunker built to shelter the politicians and important people of Scotland in case of nuclear attack.

A once extravagant mansion, now reduced to ruin.

This disused Cold War bunker has been restored to all of its early 60s glory.