护照博物馆 这个网站集合了世界各地护照样式,还有办理程序,办理难易程度等等。Passport Index curates, sorts and ranks the world's passports. Explore passport designs, browse by visa-free score, color, or country and discover how they rank.
DOAJ 收录的OA期刊数量非常多,属于目前最好的的OA期刊目录网站。DOAJ is a community-curated online directory that indexes and provides access to high quality, open access, peer-reviewed journals.
中国知网 中国知网知识发现网络平台—面向海内外读者提供中国学术文献、外文文献、学位论文、报纸、会议、年鉴、工具书等各类资源统一检索、统一导航、在线阅读和下载服务。涵盖基础科学、文史哲、工程科技、社会科学、农业、经济与管理科学、医药卫生、信息科技等十大领域。
ART INSTITVTE CHICAGO – 芝加哥艺术博物馆 芝加哥艺术博物馆,不用翻墙。Located downtown by Millennium Park, this top art museum is TripAdvisor's #1 Chicago attraction—a must when visiting the city.