What is the oldest ruins in the Philippines?
What is the oldest ruins in the Philippines? For history lovers, the Gui-Ob Church Ruins are one of the oldest ruins in the country that still stand to this day. Like most old churches in the Philippines, it was constructed with coral stones and was a major structure where locals could hold weddings, baptisms, funerals, and masses.
Where is the deepest cave on Earth?
(The absolute deepest known cave on Earth is the Veryovkina Cave in Georgia, at more than 6,800 feet deep.) The Hranice Abyss is located in a limestone formation in the Czech Republic. The stone face is full of holes worn away by acidic snowmelt, leaving it Swiss cheese-like, reports Science magazine.