This ancient oak tree sheltered accused "witches" in the 17th century.

The remnants of a depressing public toilet are now a hub of ever evolving street art.

This nondescript building hides an entrance to an underground nuclear tunnel system.

This Manchester laundromat is hiding something.

An elevator into the Baltic Sea.

Despite having a dome made of papier-mâché this tiny observatory has survived for over a century.

A small island less than half a mile from Venice is a forbidden island with a dark and twisted past.

The oldest of Venice's plague quarantine stations, designed to keep the medieval city safe from disease.

Originally a leper colony, the island is now an Armenian monastery that's home to an incredible manuscript library and eclectic museum.

This abandoned island off the Venetian coast has been a radical monastery, a political prison, and a secret Nazi base.

Thousand-year-old Viking runes adorn an ancient Greek lion at the entrance to the Venetian Arsenal.

The plague quarantine island home to the alleged "Vampire of Venice."

This Venice bookstore has resigned itself to constant flooding by keeping its books in bathtubs and boats.

Inside the Finchingfield Guildhall, two sticks that belonged to alleged witches in the 17th century.

How did a French journalist’s grave become the sexiest statue in the cemetery?

This chestnut box will not be opened until the country music legend's 100th birthday in 2046.

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

In the bowels of a 19th-century brewery lurks a fine-dining restaurant offering an array of themed feasts.

A cemetery in Barcelona's Poblenou district is home to this touching funerary statue, which depicts death in the form of a winged skeleton.

The Tudor-style cottage in the middle of the square is not quite what it seems.

This abandoned amusement park was built on a site with a dark history.

A working steam clock, one of only a few in the world, located in Vancouver's Victorian Gastown.

During the holidays, a vintage subway train whisks New Yorkers back in time.

This small town's local tradition is to create the world's tallest ice pillar.