Dating from the 11th and 12th centuries, the objects include a mysterious lead amulet, a bronze horse, weapons, ornaments made of silver, lead and copper alloys, items of everyday use such as knives, and silver coins.
The bathhouse, or mikveh, and made of oak wood was discovered next to the Great Synagogue Memorial Park in the town where an underground car park is being built.
The remains of the nine heads were uncovered by a team from the Polish Center of Mediterranean Archaeology at the University of Warsaw working at the Theban Necropolis in Upper Egypt.
The discovery of a wooden defensive rampart from the 930s means that there was a Slavic settlement in the area around the city's popular Długi Targ street even before the Polish state was first established by Mieszko I in 960.
Archaeologists exhuming the grave in the town of Barborów came across bullet-ridden helmets, broken bones, dog tags, coins, Swastika badges, shoes, a whistle and a chain with a lucky horseshoe.
Included in the find at the Lamsdorf POW camp now in Łambinowice were doctor's needles, a fragment of a razor, as well as underwear and uniform buttons, metal utensils, and cast-iron elements of heating stoves.
According to archeologists examining the medieval king’s tomb at Wawel castle in Kraków, the nickname might not even refer to the king’s height, which is thought to have been 120cm.
Included among the artefacts, archaeologists found a map template belonging to a Polish officer for marking troop movements, a bottle of Troika cologne and a slew of other discoveries relating to Guardhouse No. 5 which was destroyed during the siege.
The team of researchers from the Nicholas Copernicus University in Toruń found that the body in the village of Pień had a sickle placed over its neck, which they say would have been to prevent her from returning to mortality, and a padlock on the big toe of her left foot.
VIDEO: Archaeologists from the Stanisław Staszic Regional Museum in Piła stumbled upon the discovery while combing through the river Gwda in western Poland.