Three bridges and one giant canyon make up this fantastic Spanish settlement.

A monster in the plant world, up to 10 feet tall and smelling of death.

This former mining hub holds a surprising abundance of undisturbed relics from the Old West.

An abandoned colonial French prison notorious for its hellish conditions.

This Russian diner is staffed entirely by twins.

Dr. Strangelove-esque tours reveal the inside a bunker once reserved for Stalin himself.

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

This iconic Russian space museum sits on a landmark space production facility and houses the Vostok 1, the first manned spacecraft, that was also built here.

One of the most spectacular canyons in the world.

This natural Icelandic fissure allows divers to swim right between two volatile tectonic plates.

A forgotten remnant of the Soviet Union, Transnistria is an unrecognized country hidden behind a heavily militarized border between Moldova and Ukraine.

Site of James Cook's historic observations of the 1769 transit of Venus.

A tiny museum in Esperance, Australia, displays a bunch of space debris from NASA’s Skylab.

An underground city of ancient quarry tunnels hid thousands of Allied soldiers in WWI.

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

A collection of items from a way of life that no longer exists.

This symbol of Yugoslav liberation decorated with 620 carved heads of mythical creatures is now a forlorn relic of another time.

This ancient stone bridge is a hub for daredevils.

These Nubian pyramids are strange and unique, even by pyramid standards.

A remote monument to one of the fiercest battles fought by the Victorian British Army.

A city continually buried under the ash of a volcano that has been erupting for more than 15 years.

A controversial memorial at the place where Captain Cook met his violent end.

Formerly a brutal Nazi colony, this Chilean village was remade as a (controversial) German-themed tourist trap.

There is only one place in the world where the corners of four nations come together.