[Request] How many tons of concrete would it take to achieve this?

What is this thing in this apartment? It’s a white square that’s bolted to the wall a few inches from the floor, but there’s a bit of space between it and the wall. Has some kind of red light in the bottom right corner. There is at least one in every room.

What is this wooden kitchen utensil?

The two lower rings fit loosely and can move up and down.

Tall, square free-standing structure covered in what looks like aluminum siding, placed between a busy road and a park area. At least 10' high.

What are these vertical slits to the left of the chimney?

There are only two of them and they are only located on this side of the building despite it being fairly large.

Purchased at estate sale. Says made in India. Maybe goes around the waist of a dancer? Around 3ft long with bells on both ends.

Gray, I think it’s supposed to be inserted somewhere. 1.5-2inches deel

Made in Germany, pieces are tapered and pressed together, iron bobbin was with it but now sure if it’s related. What is it?

The bobbin and the wood pieces have clamps so they probably attached to a table or something. Any ideas?

Field of funnels in a clearing?

What is this massive piece of construction equipment, with 2 large appendages and cables running from the outer arms back to the main cab?

I was driving on the I15 in Las Vegas and they are doing construction on the Tropicana overpass. I can’t figure out what the purpose of this would be. It appears to be 3-4 stories tall.

Prism-like hard cube found in the grass of a local park