The Danube Tower/The Donauturm
Location: Vienna, Austria
Built: 1964
Height: 827ft/252m

16" Model Dimensions (1:620 scale)-
Height: 16in/40.6cm
Length: 3in/7.6cm
Width: 3in/7.6cm

24" Model Dimensions (1:414 scale)-
Height: 24in/61.0cm
Length: 4.25in/10.8cm
Width: 4.25in/10.8cm

35" Model Dimensions (1:284 scale)-
Height: 35in/88.9cm
Length: 6in/15.2cm
Width: 6in/15.2cm

Summary of Model Scales:
16in (1ft 4in)/40.6cm: (1:620 scale)
24in (2ft 0in)/61.0cm: (1:414 scale)
35in (2ft 11in)/88.9cm: (1:284 scale)

The pictures shown are of the 16 inch model.

The final picture shows the 16in, 24in, and 35in models.

The models are made up of multiple parts that interlock and do not require glue.

The height listed is to the top of the antennas.

Unedited 3D model credit-
https://www.thingiverse.com/thing:6187091