If you’ve ever done any study you are likely to have come across something held by the Library of Congress. It was nerdily exciting to go on a tour of this wonderful institution. We had been advised to get in early for the tours as they fill up quickly. We were lucky enough not to have to wait too long. On the tour our guide casually mentioned the globe collection held in the building next door (James Madison building), which we went to check out too. One of the huge globes was used by Congress admin staff (pre-internet) to work out travel distances and logistics! These two buildings are absolute must-sees if you are visiting Washington DC.