A cave in southern Italy adorned with thousand-year-old Biblical frescoes existed in obscurity until fairly recently.

The preserved arm of a third-century sorcerer is believed to have the power to lift curses and spells.

The world's oldest Jewish library was founded by Sephardic Jews in 17th century Amsterdam.

This vast, water-filled underground labyrinth can only be toured by boat.

This beautiful system of tunnels built into natural rock serves as a centuries old plumbing system.

This lake in northwest Iran has started turning from green to red more frequently than scientists are comfortable with.

The hollow trunk of this 650-year-old tree was used as a hideout by two Jewish brothers during World War II.

One of the last Jazz Age "Wonder Theaters" in New York City.

A plaque commemorates the spot in the Oregon woods where the first-ever Geocache was hidden.

A once-luxurious, now abandoned hotel in the Italian Alps.

A hermit's tiny cell built into the cliffside that saved him in South Pembrokeshire.

A restaurant on Staten Island showcases a different grandmother’s cooking every night.

A perilous medieval road leading right into the sea.

Dolphins, ancient clams and hundreds of waterfalls make this one of the world's top tourist destinations.

The world's oldest rose is so tough it survived being bombed in World War II.

Largest Kauri tree in New Zealand.

The oldest olive tree in Greece has been bearing fruit for at least 2,000 years.

Possibly the oldest living thing in Europe, more likely a pagan survivor.

The world's largest ginkgo tree contains a hollow so large a man once lived in it for two years.

A South African bar inside a hollowed out 6,000-year-old Baobab.

One of the world's oldest trees comes with a Welsh legend intertwining it with a spirit prophesying death.

This long line of cement defensive wedges is named after the famous chocolate bar for obvious reasons.

An institution dedicated to curiosity, logic, riddles, and Mongolia's long history of puzzles.

This crumbling stump is all that remains of what was once thought to be the oldest living organism.