a lot of the layout was built with her in mind. I added little windows for her to see the trains in the tunnels she crawls under the layout well I crawl she bends over alittle and walks under the layout to see them run under the layout too. she is 33 inch's tall the layout was built to 32 inchs so she can see most everything. and as you get further from the edge the higher the layout goes. here's a pic of her windows the last pic is her inside a MTH box she loves papa's trains or her words choo choo's she has her own Thomas already