Some experienced travellers claim you can't gain a true understanding of the world's myriad peoples by visiting museums, and that only by walking the streets and interacting with the locals will you really be able to appreciate foreign cultures.
But a lot of the time, the locals don't know anything and the streets are too strewn with innuendo to be of any cultural value. That's why sometimes, to truly appreciate a civilisation, you do need to visit a sterile museum and look at endless identical vases behind glass, viewed through the gaps in a Japanese crowd.