Question: I need a resource that allows me to search and explore historical documents and maps from Eastern Europe, can you suggest something?

If you're looking for a resource to search and explore historical documents and maps from Eastern Europe, Arcanum is an excellent choice. This online publisher features a large digital periodical archive with millions of pages, including historical maps with 3D visualization and advanced search capabilities. The site offers extensive cultural content, such as digitized books and literary works, and supports institutional subscriptions for embedding maps on personal websites. You can access contents for free, with option to download high-resolution map tiles for a small fee.

For a more AI-powered approach, ChatDox allows you to query a wide variety of documents, including PDFs and historical maps, to get quick answers. It supports multilingual queries and offers custom categories and live support through a Discord server, making it a versatile tool for researchers and students.

Another tool worth considering is Unriddle, which creates an AI assistant on top of any document to help you quickly find information, summarize topics, and take notes. It supports over 90 languages and integrates seamlessly through a Chrome extension, making it particularly useful for researchers needing to handle large documents efficiently.