Wt a C++ based web development toolkit. Includes all the bells and whistles like front-end, ORM, graphics(2D/3D), audio, video, graphs/charts, tables, trees, supports browsers with no javascript, responsive, payments, authentication, notification and much more.
The development experience is similar to desktop application development.
Examples are available here: https://www.webtoolkit.eu/widgets/layout
talking about C++, there are drogon framework: https://github.com/drogonframework/drogon
not bells and whistles like on Wt as there are no integrated widgets. But have c++ based template (for HTML) engine and other integrated parts what you expect from framework (routing, controllers, db, authentication handling and so on).
and boasts high performance design