The world of the ancient Celtic civilization explained through a bewitching 11 acre garden.

The Grand Lodge of Ireland is one of the oldest in the world, full of fantastical, elaborately themed rooms.

Dublin's "Dead Zoo" serves as a window to Victorian museum design.

An 80-year-old plane tree is devouring an iron bench at Ireland's oldest law school.

The oldest public library in Ireland.

A nun spent 16 years painting the stunning Celtic mural that covers the interior of this WWI memorial.

Hidden amid the tropical forest in the Caribbean Sea are the decaying ruins of the Cocaine King's luxurious island party home.

A mysterious ancient cemetery with Roman sarcophagi and Lycian inscriptions.

Mediterranean castle on a tiny Turkish island.

A Turkish ghost town abandoned in a population exchange with Greece.

Hidden just under the waters around this Turkish island are the ruins of a once great city.

A Lycian city of the dead carved into the hillside of Southern Turkey, complete with startlingly human touches.

Standing proud atop a Turkish bluff, this Ottoman palace has retained its grandeur despite being abandoned for centuries.

This picturesque mansion has gone from opulent ruin to nature museum.