Palace of Childhood and Youth, Sevastopol, Crimea, Ukraine. Built in 1913.

Model has a real-world scale. Palace is placed near (0,0,0) origin.
Centimeter units are used.
Palace dimensions (without flags): 63.5x62.3x24.5 m
Polygons (Palace only): 606773
Vertices (Palace only): 701491

Palace itself is in 'palace' layer. Everything else is in 'environment layer'. To put palace to your scene, you can use only objects in 'palace' layer.

Each palace object has instanced Turbosmooth modifier, so you can change number of palace iterations with one click.

BONUS:
scene includes Bench, Trash can and Street light, models of real ones located in Sevastopol near the Palace.
All street lights have instanced light sources. To render night scene, turn on one of 'Street Light Source' objects and decrease 'Skylight' (VRay Dome Light) intensity.

Scene is ready to render as on thumbnails.