The haunting peak of an old church is all that remains of a drowned Brazilian city.

The 953 windows undoubtedly make this the world's most beautiful screened porch.

This 14th century castle withstood years of battle but is now sliding off the hills into the Danube.

This Tuscan lake hides a 13th century town that is still visible when the water recedes.

More than half of this Indian palace is drowned but it looks all the more spectacular for it.

A well-preserved Ancestral Puebloan ruin tucked beneath a desert cliff.

An abandoned castle owned and ignored by Masons carries a cursed history.

This hilarious English intersection is an automotive whirlpool.

Colin Stokes "got a bit carried away" and built a castle that looks like something out of Tolkien.

This elaborately decorated, fairytale-like Romanian royal palace is one of the most striking castles in Europe.

The longest living non-clonal organisms on Earth.

Hidden behind Lincoln's head is a 70-foot-long chamber containing enamel plates documenting American history, sealed in a teakwood box in a titanium vault.

A small museum filled with over 1,000 clocks, and one particular clock calibrated to run until the year 9999.

A preserved oak tree about 3,500 years old found in Riga, Latvia.

The gilded, masterful astronomical clock will calculate time, dates, and planetary positions for thousands of years to come.

A clock designed to run with perfect accuracy for 10,000 years.

An ancient iron pillar in Delhi that seems to be rustproof.

The "Greatest Sewer" of ancient Rome is one of the oldest sewer systems in the world, and is still in use.

A tower devoted to — and modeled after — the Divine Comedy.

Roots and stumps that lay inundated for two millennia are on display in Japan's city of three mysteries.

The ancient tomb acts as a calendar that keeps perfect time.

Hidden in the hills is a mysterious stone structure, known only to a few.

From carts to cars, this leftover Roman bridge in France has managed to survive for centuries.

Amazing and mysterious Neolithic settlement on Scotland's Orkney Islands.