The library has a magnificent interior and very informative exhibitions.
Well worth the hassle of the overt security compared to the museums.
My touristy trousers had loads of pockets which all had to emptied like at airports and when I forgot my ancient cellphone deep in a pocket, the very rude and arrogant, wand waving, security official made me feel like a criminal. If you want to take the tunnel to the Capitol, no water bottle is allowed!
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