@slowwalker,
Yeah it's little strange! Conz in my country all temples with real Buddha Sarira, is highly protected and very famous as well! So like you said it's strange to see that broken wall and small Stupa of that temple! Sometimes after years of that time, people have moved that Sarira piece to somewhere else! Anyway those are relics and great histories! So we all must protect that history to our children!
Every nation built top of great histories! That's what I strongly believe!

Cheers~