Over the years, we have found some seriously strange things lying underneath the construction site. These bizarre things included everything from tangible evidence of civilization to priceless treasures.

Scroll down to have a look.

A Mummified Toddler Was Found In A Parisian Apartment

A Child’s Letter To Santa Claus From 1943 Was Found In A Chimney

A 700-Year-Old Mummy Was Found Under A Chinese Road

An 1894 Time Capsule Was Discovered Under A Scottish Bridge

A 13th Century Mansion Was Found Under Somerset, England

A 17th Century African Burial Ground Was Found In Manhattan

A Medieval Hospital Was Found In Madrid, Underneath The Future Site Of An Apple Store

A 60,000-Year-Old Wooly Mammoth Tusk Was Found In Washington State

Around Two Dozen Coffins Were Found Under A Philadelphia Apartment Building

A 1,500-Year-Old Byzantine Church Beneath Was Found Beneath A Highway

An Ancient Mayan Ball Court Was Uncovered In Mexico

The 2,200-Year-Old, Long-Lost Temple Of Pharaoh Ptolemy IV Was Found In Egypt

An 18th Century Cemetery Was Found At A Site For A New Orleans Swimming Pool

More Than 40 Skeletons Possibly From The 11th Or 17th Century Were Found In England

Whale Bones Were Found Under A Light Rail Dig Site In Edinburgh

An Unexploded WW2 Era RAF Bomb Was Uncovered In Berlin